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SCIENCE-ADVERTISEMENTS 9
Now... Second Edition
PLANE AND SPHERICALTRIGONOMETRY
By H. A. SIMMONS, Profesor of Mathematics, Northwestern
University
THIS UNUSUALLY DETAILED TREATMENT of Plane and Spherical
Trigo-nometry is an expansion and revision of Simmons and Gore's
PLANE TRIGO-NOMETRY. This second edition is about twice as long as
PLANE TRIGONOMETRYand includes not only Spherical Trigonometry but
a large number of applications to sur-veying, navigation and
nautical astronomy. Precisely the solid geometry needed forthe
study of Spherical Trigonometry has been added to the text; also
chapters on ComplexNumbers and the Slide Rule.PLANE AND SPHERICAL
TRIGONOMETRY begins with the trigonometric functionsof the general
angle, instead of the positive acute angle considered in the first
edition.All chapters have been considerably revised in the light of
suggestions from readers.The very complete tables include ones for
work with mils and also with haversines.
* An improved treatment of Trigon6met- * More complete
illustrative materialric Equations * Improvement in presentation of
signifi-
* A better introduction to vectors cant figures* More inclusive
problem lists * Construction and use of Mercator charts
* Printing in a larger type and with better use of bold face
typeto emphasize important words and concepts
August, 1945 519 pages 55/8 by 85/8 With Tables $3.00
JOHN WILEY & SONS, Inc., 440-4th Ave., New York 16, N.
Y.m
AUGUST 3J, 1945
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SCIENCE-SUPPLEMENT VOL. 102, No. 2640
SCIENCE NEWSScience Service, Washington, D. C.
RED STARSVERY red stars whose spectra show an abundance of
titanium oxide and carbon compounds show a specialdistribution
in our part of the galaxy. These conclusionshave been set forth in
a recent report by Dr. Oliver J.Lee, director, and Thomas J.
Bartlett, of the DearbornObservatory of Northwestern
University.
The titanium oxide stars, known to astronomers as typesM5 to M8,
are more easily detected and classified onplates made at the
observatory than any other stars, soif others had been present in
the regions studied, theyundoubtedly would have been identified
during the Dear-born survey of faint red stars.
The second of three parts of the survey has just beenannounced
in the Annals of Dearborn Observatory. Sofar nearly one third of
the total area of the sky, or about14,000 square degrees, has been
studied.M-type dwarf stars of absolute magnitude 9.7, which
means stars only about 1/100 as bright as the sun, havebeen
observed to a distance of about 123 light years,
or722,000,000,000,000 miles away. Ordinary giants andsupergiants
located hundreds of times farther away werealso studied. Thus these
giants have been hunted farand wide, and if they are well
distributed in our galaxy,considerable numbers should have been
recorded on thephotographic plates as faint stars.Among the 22,680
stars which have been catalogued
thus far at the observatory only 1,499 were of the ad-vanced
titanium oxide type.
Because of the foregoing considerations, and becauseof the
relatively high concentration of carbon stars inthe anticentric
regions of the Milky Way, several ques-tions which would bear
further investigation have oc-curred to the Dearborn
astronomers:
Does our branch of the Milky Way have an unusuallyabundant
supply of carbon and its compounds? Is thistrue also of the
titanium oxide molecules in stars ofadvanced M type?
If so, is this due to quite irregular distribution of
thosecosmic materials or does our part of galactic space
haveproperties which tend to make them more favorable mate-rials
for building stars?
Is our branch of our galaxy a somewhat recently de-veloped
subdivision, or possibly a very old one, in whicha carbon cycle and
perhaps a titanium cycle have goneberserk and rule the destinies of
stars for a brief periodwith complete abandon?
ITEMSA NEWLY designed 30-passenger domestic postwar trans-
port plane, to be built by the Consolidated Vultee
AircraftCorporation, will combine passenger comfort with operat-ing
efficiency. In this new Convair design, designatedas Model 110,
speed at low cost, safety and completecomfort for travelers are
incorporated. It is expectedto reduce airline operating costs to a
minimum. The newConvair will be a low-wing, twin-engine monoplane
witha cruising speed of 275 miles an hour, at least 95 miles
an hour faster than the twin-engine transports in commonuse by
domestic airlines. It will have a maximum speedof over 300 miles an
hour. With a gross weight of 32,300pounds, it will be able to carry
an 8,000-pound payload ofpassengers, mail, express and baggage.
Passengers willenter the new plane by means of a retractable
stairwaylocated beneath the tail. Luggage racks and a
full-heightcoatroom are at the head of the stairs. Cabins will
befinished in restful colors. Individually adjustable Po-laroid
windows will be used to reduce glare, spun-glassinsulation will
keep out engine noise, and custom-designedseats will provide
passengers with comfort and an oppor-tunity for relaxation.
THAT unit transportable electrical power plants, com-plete with
generator, steam turbine, boiler and other neces-sary parts, are
being shipped to Europe to furnish powerin bombed-out regions to
help the return to normal indus-trial production, is announced by
William E. Knox, of theWestinghouse Electric International Company.
The unitsare of two sizes, one with a capacity of 2,000
kilowatts,the other half as large. The idea of a compact
power-producing unit first was conceived by Mr. Knox for usein
China, following a trip to that country in 1939. TheChinese, forced
back into the interior by the Japanesefrom their coastal industrial
cities, needed a quick meansof generating electric power for war
production. West-inghouse designed units that could operate on
locallyabundant low-grade coal and models that were built toburn
lignite, oil, wood and even peat. The European warcreated another
demand. A semi-portable design was per-fected that could be
assembled in a minimum of time.To meet the emergency requirements
of rehabilitation adesign was made that simplifies the arrangement
of themajor parts and eliminates all dispensable refinements.
THE new insecticide, DDT, gives promise of eliminatingbarnacles
from ships' bottoms and other marine struc-tures. Barnacles failed
to attach themselves in sixmonths' time to wooden panels coated
with a paint devel-oped by Professor R. E. Dimick, of Oregon State
College.This paint contained DDT, chemically
dichlorodiphenyl-trichloroethane, and no other known toxic
substance. Con-trol boards treated with the ordinary antifouling
paintswere heavily covered with barnacles and other
salt-waterfouling animals after three months' submersion in
marinewaters. The anti-barnacle paint was one of a large
grouptented at the Yaquina Bay Fisheries Laboratory operatedby the
Oregon Agricultural Experiment Station. SinceDDT is insoluble in
water, the expectations are that itsantifouling properties may
greatly exceed the initial testperiod of six months. Studies are
being continued to de-termine the efficiency of DDT as antifouling
agent formarine animal forms other than barnacles, as a controlfor
wood-boring marine mollusks and crustaceans, and toascertain if the
insecticide exhibits differences in anti-fouling properties for the
various species of barnacles.
10
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SCIENCE-ADVERTISEMENTS 11
THE HARVARD BOOKS
On -AstronomyThe new, largephotographictelescopes havemade
possiblethe showing ofthe uniquepictures inthese books.
THEAMERICANSCIENTIST,
says:-
"Thestyle
is
refreshingeverywhere"
B LAKISTON
BOOKS
Order __- _
Edited byHARLOW SHAPLEY, Ph.D.
andBART J. BOK, Ph.D.
HARVARD COLLEGE OBSERVATORYGALAXIES
By HARLOW SHAPLEY, PH.D.126 Illus. 229 Pages. $2.50
THE MILKY WAYBy BART J. BOK, PH.D., and PRISCILLA F. BOK,
PH.D.93 Illus. 204 Pages. $2.50
BETWEEN THE PLANETSBy FLETCHER G. WATSON, PH.D.106 Illus. 204
Pages. $2.50
EARTH, MOON AND PLANETSBy F. L. WHIPPLE, PH.D.140 Illus. 293
Pages. $2.50
ATOMS, STARS AND NEBULAEBy LEO GOLDBERG, PH.D., and LAWRENCE H.
ALLER, PH.D.150 Illus. 323 Pages. $2.50
TELESCOPES AND ACCESSORIESBy GEORGE Z. DIMITROJT, PH.D., and
JAMES G. BAKER, PH.D.182 Illus. 309 Pages. $2.50
THE STORY OF VARIABLE STARSBy LEON CAMPBELL, PH.D., and LUIGI
JACCHIA, PH.D.82 Illus. 226 Pages. $2.50
Please send me thefollowingbooks:
...............................................................................................
Name Address .S...... sci. 8-3
THE BLAKISTON COMPANY PHILADELPHIA 5, PA.
Natural History Magazine, says:-" Their excellence will assurea
warm welcome by amateur astronomers and teachers of astron-omy
everywhere. Although written for the nonprofessional, theyare, as
they should be, scientifically accurate, up-to-date, and
sur-prisingly complete. There is much fascinating astronomy
herethat this reviewer has not seen in popular books, or in any
booksfor that matter. "
..........................................................................................
AUGUST 3, 1945
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12 SCIENCE-ADVERTISEMENTS VoL 102, No. 2640
INTRODUCTION TOANIMAL BIOLOGY
For this new edition, the content of thetext has been brought
into line withpresent-day knowledge of biology. Cor-rections and
additions have been madein both illustrative and text matter.
Inaccordance with suggestions receivedfrom users of the first
edition, the dis-cussion of hormones and vitamins hasbeen revised,
and the subjects of heredityand evolution have been expanded.532
pages, 172 illustrations. $3.75
AN EXCELLENTTEACHING COMBINATION
FOR FALL CLASSES
PARKER & CLARKE BOOKS
LABORATORY DIRECTIONSIN GENERAL BIOLOGY
This manual is divided into two sections:Part I, the study of
Animal Life; PartII, the study of Plant Life. The selec-tion and
arrangement of the various ex-ercises are adapted to the needs of
stu-dents who have little or no previous ex-perience in the formal
study of biology.Together, the text and manual are an ex-cellent
teaching combination, and arecoordinated for use together.
148 pages. $1.50
by JOHN B. PARKER, Ph.D., Professor Emeritus ofBiology and JOHN
J. CL.ARKE, Ph.D., Assistant Pro-fessor of Biology, Retired, The
Catholic University of
America, Washington, D. C..__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _
The C. V. MOSBY COMPANY3207 Washington Blvd.,St. Louis 3,
Mo.Gentlemen: Send me--Parker & Clarke's Introduction to ANIMAL
BIOLOGY, $3.75.
-Parker & Clarke's Laboratory Instructions in GENERAL
BIOLOGY, $1.50.-Attached is my check. -Charge my aecount.
Name
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I 1
iSCIENCE-ADVERTISEMENTS vou 102, No. 264012
sci 6/43
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SCIENCE-ADVERTISEMENTS 13
FACED with the loss to the Armed Forces ofone out of three of
its skilled lamp shop crafts-men, Corning Glass Works turned to
women workers. Old-timers were outspokenlyskeptical. "Gals" were
strictly counter to glass blowing tradition.
Never-the-less, nimble feminine fingers quickly proved their
worth. Today Corning'slamp shops are decidedly coeducational. Women
perform not only the simpler oper-ations, but frequently tackle
more complicated glass fabrication. Thus experiencedcraftsmen can
be assigned to more intricate glass making tasks.By using women to
replace workers called to the Armed Forces, by operating three
shifts and by adding lamp shop facilities at Parkersburg, West
Virginia, Corning hasmade considerable progress toward meeting
production demands.You may find, however, that there are times when
your laboratory supply dealer may
be out of even standard catalog items of Pyrex, Vycor and
Corning Glassware. And asfor special apparatus, that is most
difficult of all. Be assured, though, that this situationis only
temporary and when VICTORY comes, both Corning and dealers will be
in a
better position than ever to serve you.
"Pyrex," "Vycor" and "Corning" are registered trade-marks and
indicate manufacture by
CORNING GLASS WORKS * CORNING, NEW YORK
BALANCED FOR ALL-AROUND USE
,v 1hb41 S4SSW 4R
PYREX)
AUGUST 3, 1945
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SCIENCE-ADVERTISEMENTS VOL. 102, No. 2640
FREEZE-DRYING as Hospital-size freeze-drying apparatusKEY TO
UNLIMITED PRESERVATION, WITHOUT REFRIGERATION,OF PLASMA,
PENICILLIN, SERUMS AND OTHER BIOLOGICALS
Stokes Lyophile-Cryochem freeze-drying equipment fordesiccation
from the frozen state, has been a vital key tothe development of
the Blood Plasma and Penicillin Pro-grams. It is equally successful
in the preservation of serumsand other labile biologicals. The
method used is Dryingby Sublimation* under high vacuum.Stokes
pioneered and commercially developed this methodand the equipment
for it in conjunction with the Universityof Pennsylvania and Sharp
and Dohme. Today, more than275 Stokes freeze-drying units are in
use throughout theUnited States and 24 foreign countries ... in
laboratories,
*Journal of Immunology, Vol. 50, No. 1, 1945
hospitals, universities, government health services
andcommercial plants.Stokes engineers and manufactures complete
equipmentfor the process, from test tube to plant-scale
capacity.Facilities and authoritative assistance are available
forresearch, development and application of this process. Acomplete
pilot plant in the Stokes Laboratory is used fortests and
demonstrations. Our technical staff invites yourconsultation.
F. J. STOKES MACHINE COMPANY5958 Tabor Road Philadelphia 20,
Pa.
14
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IN T HE MA R K ET P LACERates to be paid in advance: 10 cents a
word, minimum $2.00; no discounts or agency commissions. Count
eight words If abox address is to be used. Copy should be sent to
the Advertising Department, American Association for the
Advancement ofScience, Smithsonian Institution Building, Washington
25, D. C.
POSITIONS OPENMedical Bacteriologist: teaching and research
posi-tion, department of bacteriology, class A medicalschool, east.
Ph.D or M.D. required. State quali-fications and experience. Box
187, " SCIENCE, "Smithsonian Institution Building, Washington 25,D.
C.Manufacturer of scientific instruments seeksqualified agent in
Washington, D. C. Write to:Gamma Instrument Company, 95 Madison
Avenue,New York 16, New York.Pharmacology-Associate Professor.
Central uni-versity medical school. M.D. preferred, not essen-tial.
Hospital connection if desired. Box 195,"SCIENCE, " Smithsonian
Institution Building,Washington 25, D. C.Wanted Organic, Physical,
and Analytical Chem-ists, Mechanical and Chemical Engineers,
andPhysicists for positions in Research and TechnicalService Branch
of a petroleum company withworld-wide interests. Remuneration
dependentupon college degree and experience. Box 197"SCIENCE,"
Smithsonian Institution Building,Washington 25, D. C.Pharmacologist
or Physiologist, Bachelor's orMaster 's degree in these or related
sciences, totake permanent position in modern research labora-tory
Eastern New Jersey. Salary according to ex-perience and training.
Opportunity for individualof high caliber. Box 196, " SCIENCE,"
SmithsonianInstitution Building, Washington 25, D. C.Opportunities
Available-(a) Associate or assis-tant professor, department of
bacteriology andparasitology, university medical school; Ph.D.
orphysician with major in bacteriology, immunologyor virology; must
be interested in research. (b)Professor and head of division of
physiology; ex-tensive experience in teaching medical
physiologyrequired; university medical school; (c) Chemistto direct
laboratories of maternity health depart-ment; duties include
working with departments ofobstetrics and pediatrics, univeristy
medical school;Middle West. (d) Biochemist for position in officeof
surgeon, Diplomate of American Board of Sur-gery; duties
principally research; Southern Cali-fornia. (e) Instructor,
department of biology,middle western university; man with Ph.D.
re-quired; duties consist of teaching general biologyand a section
or two of Man and the NaturalSciences; would like some one who
would ultimatelydevelop courses in heredity, eugenics and
organicevolution. (f) Research associate; universityschool of
medicine; M.S. or Ph.D. degree in bacteri-ology or chemistry
required; West. (g) Bacteri-ologist, well qualified in serology
with administra-tive experience to supervise staff of six
technicians;fairly large hospital; university medical center;South.
S8-1 Medical Bureau (Burneice Larson,Director) Palmolive Building,
Chicago 11.
POSITIONS OPENWanted: Bacteriologist, preferably with
experiencein the preparation of antigens, with knowledge ofanimal
immunization and with some research ex-perience. Excellent
opportunities for advance-ment. Location, East. Write, giving age,
educa-tion, experience and salary requirements. Box198, "
SCIENCEn," Smithsonian Institution Building,Washington 25, D.
C.
POSITIONS WANTEDPersonnel Director, Ph.D. now employed
wantsposition in New York City. Specialist in selectionof
scientific personnel. Close personal contactswith universities
throughout the country. Salary$15,000. Box 186, "SCIENCE,"
Smithsonian In-stitution Building, Washington 25, D. C.Biologist,
Zoologist. Undergraduate and threeyears of graduate work all at
leading universities.19 years of college teaching mostly Zoology,
He-redity and Physiology in western state university.Publications.
Stress personal relationship to stu-dents. Protestant. Prefer
California or east ofMississippi. Box 194, "SCIENCE,"
SmithsonianInstitution Building, Washington 25, D. C.Opportunities
Wanted-Physiologist; A.B. andB.Se. degrees, eastern university;
several years as-sistant in general physiology, Harvard
University;eight years' teaching experience; present rank,
as-sociate professor of physiology; recommended asexcellent
teacher-able in research; for further in-formation, please write
Burneice Larson, Director,Medical Bureau, Palmolive Building,
Chicago 11.
PERIODICALSFor Sale: Medical, Chemical, and Scientific
Peri-odicals. Sets, volumes, copies. B. LOGIN ANDSON, INC.
Established 1887, 29 East 21st St.,New York 10.Out-of-Print Books
and Periodicals Supplied.Any subject, any date. Send list of wants.
Noobligation. Periodical Service, Box 327, Swarth-mnore,
Pennsylvania..Wanted to purchase Scientific Periodicals,
For-eign-Domestic. WALTER J. JORNSON, 125East 23r Street, New York
10, New York.
SUPPLIES AND INSTRUMENTSWanted to Buy: Leitz
Microphotometer-Stateprice and condition. Write to RALiPH L.
EVANSASSOCIATES, 250 East 43rd Street, New York 17,New York.
Write for New Cat. No. 67 onAnalytical Filter Papers
Schleicher & Schueli Co..S Plant and Lab: South Lee,
Mass.Head Office: 116-118 West 14th St.
New York 11, 1. Y.
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16 SCIENCE-ADVERTISEMENTS VOL. 102, No. 2640
VITAMINS MADE WITH PHARMACEUTICAL ELEGANCEWhatever the pure
crystalline vitamins you require in the course of yournutritional
studies, you can rely on Hoffmann-La Roche, for vitamins
whichembody the utmost in scientific knowledge and skill.As a
pioneer in the investigation of vitamins (now a world's leading
producermaking them by the tons) we accord every step in their
production and con-trol the unremitting precision of which the
trade-mark 'Roche' is a guarantee. -Remember this when you consider
your next order to Roche Park -forthiamine hydrochloride,
riboflavin, ascorbic acid, pyridoxine
hydrochloride,falpha-tocopherol acetate, nicotinic acid,
nicotinamide, calcium pantothenate.
HOFFMANN-LA ROCHE, INC., Vitamin Division * Nutley 10, N. J.
16 SCIENCE-ADVERTISEMENTS VOL. 102, No. 2640
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AUGUST 3, 1945 SCIENCE-ADVERTISEMENTS 17
urnBacto-Agar
Bacto-Agar is a purifiedAgar prepared from domes-tic material.
In the manu-facture of Bacto-Agar ex-traneous matter,
pigmentedportions, and salts are re-duced to a minimum, so thatthe
finished product in theform of fine granules willdissolve rapidly,
giving clearsolutions.
DIFCO LABORATORIESINCORPOvAT1DDETROIT 1, MICHIGAW
COLOR PHOTOMICROGERAPHYtTITHKODACHROME FILM, it is possible to
make photomicrographs in
full color with comparative simplicity. In biology, the
photographic repro-ductions will exhibit the features for which the
original specimens werestained. In petrography, the colors of
mineral specimens or the characteristiccolor reactions with
polarized light can be exhibited to lecture audienceswith lantern
slides in full color. In metallography, the effects of
characteristicetchants can be recorded in metallographs in color.
For motion photomicrog-raphy, sequences on Kodachrome Film of the
circulation of blood are verystriking, as are fields of motile
organisms made in contrasting colors bymeans of the
Wratten-Rheinberg Differential Color Filters.
Useful chapters on color photomicrography are included in the
new 14thedition of the handbook, Photomicrography, available
through Kodakdealers. Price, $2.
EASTMAN KODAK COMPANY
*LaMOTTECOMBINATION
CHLORINE-pH OUTFIT
A new compact, flexible unit for both pH andChlorine
determinations Ideal for use in eitherlaboratory or field work, as
all necessary equipmentfor making tests is supplied in one carrying
case.As an added feature, the Ortho Tolidine-ArseniteReagent may be
included at slight extra cost fordifferentiation between active
chlorine and theslower acting chloramines. Complete unit withfull
instructions $23.25-without Arsenite reagent$22.50. Prices f.o.b.
Towson.
LaMotte Chemical Products Co.Dept. "H' Towson 4, Baltimore,
Md.
E-
W=
AUGUST 3, 1945 SCIENCE-ADVERTISEMENTS 17
Rochester 4, N. V.Research Laboratories
-
-r1
Illustrate your Lecture-.
New facts, new developments, newchanges arise daily' out of the
swiftlymoving events in a world geared to war.The Spencer Model VA
Delineascope
is performing an. invaluable. servicle, be-cause in addition to
''lantern sIides,' it:can project the printed
page,̀charts,photographs, diagranms and-even opaqueparts and
objects: Visually, it presentsyour ideas to nurses in training- to
yourassociates in medical work-to largegroups or small.
Many. of these Delineascopes are nowbeing released for civilian
and hospitaluse. Write us for details.
American' .OpticalScientific Instrument Division
Buffalo 11, NewYork
it.. 4 3*KWC kint
As %;:a