food for thought - science...mmup to and including 48x60 mm 2.52 2.27 1.89 ditto, no. 2 ..... 1.98...

11
FOOD FOR THOUGHT... C o IIege e by CLARENCE I. HYLANDER formerly of Colgate University and ORAN B. STANLEY Colgate Unih ersity ROOTS USED AS FOOD from Chapter 8 ROOTS for the one-semester course E:ACH half of COLLEGE BOTANY represents an inde- pendent unit providing adequate material for the one-semester course. Part I discusses the individual plant and its life prob- lems, using a woody green plant to introduce the student to the basic facts of plant morphology, histology, and cell struc- ture, with the necessary correlation between structure and function. _ Part II treats plants as groups rather than as individuals. The main taxonomic groups are described, as well as plant communities, environment, geography and diseases. Conclud- ing chapters summarize the role which both heredity and environment play in plant evolution, and the recreation of the prehistoric floras as documented by the fossil record. Pub- lished in 1949, 650 pp., $5.50 60 FIFTH AVENUE, NEW YORK 11, N. Y. May 15, 1953 11

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Page 1: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

FOOD FOR THOUGHT...

C o IIegee

by

CLARENCE I. HYLANDERformerly of Colgate University

and ORAN B. STANLEYColgate Unih ersity

ROOTS USED AS FOODfrom Chapter 8 ROOTS

for the one-semester course

E:ACH half of COLLEGE BOTANY represents an inde-pendent unit providing adequate material for the one-semestercourse. Part I discusses the individual plant and its life prob-lems, using a woody green plant to introduce the student tothe basic facts of plant morphology, histology, and cell struc-ture, with the necessary correlation between structure andfunction._ Part II treats plants as groups rather than as individuals.The main taxonomic groups are described, as well as plantcommunities, environment, geography and diseases. Conclud-ing chapters summarize the role which both heredity andenvironment play in plant evolution, and the recreation ofthe prehistoric floras as documented by the fossil record. Pub-lished in 1949, 650 pp., $5.50

60 FIFTH AVENUE, NEW YORK 11, N. Y.

May 15, 1953 11

Page 2: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

Are you receiving . . D

INSTRUMENT NEWS is an 8-page quarterlypublished in the interests of furthering research,material analysis, and production through mod-3ern optical instrumentation. Articles of tech- 3nical and general interest are prepared by lead-ing workers in the field and the Perkin-Elmerstaff.

Some of the outstanding articles from the Spring '53issue are:NEW CONTINUOUS MULTI-COMPONENT INFRARED

STREAM ANALYZER FOR PILOT PLANTSDescription of New Model 14INFRARED AND THE MEDICAL FIELDArticle by Van Z. WilliamsUSE OF KBr FOR INFRARED SOLIDS ANALYSISDescription of Revolutionary New Technique

Among the subjects from the Winter '53 issue are:CONTINUOUS PROCESS STREAM INFRARED ANALYZERSOne step closer to the automatic plantNEW MODEL 13 RATIO-RECORDING INFRARED SPEC-TROPHOTOMETER

Operates single or double beamULTRAVIOLET AND NEAR INFRARED SPECTROPHO-TOMETRY

Adopting the Perkin-Elmer Model 112 IR spectrom-eter

You may receive INSTRUMENT NEWS regularlywithout charge by filling in the coupon below.

THE PERKIN-ELMER CORPORATION840 MAIN AVENUE, NORWALK, CONN.

Please send me INSTRUMENT NEWS I

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The handiesT aid in the laboratory is the Carver Lab-oratory Press. Compact, self-contained, this press pro-vides controlled pressures to 20,000 lbs. Interchange-able accessories are available for pressure filteringof thick fluids, separating liquids and solids, pressingout concentrated extracts and flavors and many otheruses. Send for new descriptive Catalog.

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SCIENCE, Vol. 117

Page 3: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

(Iktime.Accuraci

Above: Close-up of the con. Accuracy ...day in and day outversion table in millimeters, 'round the clock dependability . that'smillibars and inches.whtyugtiaCec MrcilLeft: Cenco Mercurial B3a. htyugti ec ecra

rometer with white lac- Barometer. Cenco features ... patentedquered metal mounting. improvements . . . precision manufac-

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Order today for prompt deliveryNo. 76890 Cenco Mercurial Barometer for eltitudes 0 to 4000 ft.with scales ranging from 600 to 800 mm and 24.5 to 31.5 inches- $verniers for reading to 0.1 mm or 0.005 inch. Each.........$ 7.16No. 76891 Cenco Mercurial Barometer, same as No. 76890 butfor altitudes from 1500 up to 10,000 feet. Scale rangesfo500 to 700 mm and 19.5 to 27.5 inches. Each........... $55.15No. 76892 Barometer Mounting made of sheet metal for safe and convenientmounting of Cenco barometers. Finished in white lacquer to providea light background for adjusting the zero index and vernier. With $83conversion table. Length, 37V2 inches, width 3V2 inches. Each... 83

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Page 4: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

A NEW AAAS SYMPOSIUMINDUSTRIAL SCIENCE-PRESENT AND FUTURE

Subjects treated includeFive leading Industries:

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Authors who collaborated to make this book an auspicious inauguration of the new AAAS Section onIndustrial Science (P)Allen T. Bonnell, Vice PresidentDrexel Institute of TechnologyLillian M. Gilbreth, PresidentGilbreth, Inc.James Creese, PresidentDrexel Institute of TechnologyFrank C. Croxton, Assistant DirectorBattelle Memorial InstituteAlan T. Waterman, DirectorNational Science FoundationRobert E. Wilson, Chairman of the

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6 x 9 inches, paperbound, 160 pages, price $2.00Orders for 10 or more copies, $1.60 per copyBoth Industrial Science and Soviet Science, $3.00

Mail your order nowTO: AAAS PUBLICATIONS1515 Massachusetts Avenue, N.W.Washington 5, D. C.Please accept my order for ...... copies of Industrial Science.Please accept my order for ...... copies of Soviet Science.My check or money order in the amount of $.......... is enclosed.

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14 SCIENTCE, VOl. 117

Page 5: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

* Cut from machine drawnflat strips of precision

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* NOW OFFERED AT REDUCEDPRICES BECAUSE OF LOWER

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sold by us with great satisfaction continuously since 1902, improved from time to time, butnow mechanically drawn in strips, which method of production offers the advantagesof flatness and precision controlled thickness as compared with former method of handblowing. Offered from stock in a wide variety of thicknesses, sizes and shapes-see pp.887 and 888 of our catalogue. Outstanding characteristics are:

* High resistance to attack by moisture0 Freedom from brittleness

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ARTHUR H. THOMAS COMPANYLABORATORY APPARATUS AND REAGENTS

WEST WASHINGTON SQUARE PHILADELPHIA 5, PA.

Teletype Services: Western Union WUX and Bell System PH-72

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Per oz. Per oz.Per in 6 oz. in 144 oz.

ounce carton assortments7020. SQUARES, No. 1, 18 mm, 22 mm and

25 mm ......................... 1.96 1.76 1.47Ditto, No. 2 ........ ............ 1.64 1.48 1.23

7022. CIRCLES, No. 1, 18 mm, 22 mm and25 mm ............. ............ 3.12 2.81 2.34Ditto, No. 2 ........ ............ 2.68 2.41 2.01

7024. RECTANGLES, Small, No. 1, 22 x 30mm up to and including 22 x 50 mm 1.96 1.76 1.47Ditto, No. 2 ......... ........... 1.64 1.48 1.23

7024. RECTANGLES, Large, No. 1, 24 x 50mm and 24 x 60 mm ...... ...... 1.98 1.78 1.49Ditto, No. 2 ......... ........... 1.66 1.49 1.25

7024. RECTANGLES, Large, No. 1, 35 x 50mm up to and including 48 x 60 mm 2.52 2.27 1.89Ditto, No. 2 .......... .......... 1.98 1.78 1.49

* One size, shape and thickness only.

15

Page 6: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

The RecoELECTRIC

DESALTERFor the removal of inorganicsalts from organic and aminoacid solutions to be chromat-ographed.

The RecoCHROMATOCABFor two dimensional paperchromatography, using stand-ard filter paper sheets 18¾Y4by 221/2 in., or smaller.

II

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INDICATOR SPRAYSFor application of indicators tochromatograms.

CLIPS _All stainless steel spring clips forholding chromatograms to glass rods

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May 15, 195317~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

A General Catalogueof the RECO Line ofPaper PartitionChromatographicEquipment Is

Available on Request.

KLETTELECTROPHOR ESIS

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MaY 151 1953 17

Page 7: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

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|"||||||||||||||||||POSITIONSWAN D ||||||||||||||||||Anatomist, Ph.D. Summer 1953. M.S. in Physiology. Desiresteaching position with opportunity for research. Anatomy orZoology Department. Five years university teaching experience.Box 94, SCIENCE. X

Bacteriologist, Ph.D. Biochemistry minor. Five years' teaching, oneyear research experience. Prefer North central. Available June 1,1953. Box 91, SCIENCE. X

Biochemist, Ph.D. 1952. Plasma protein fractionation, coagulation,electrophoresis, publications. Five years' teaching experience. Seeksteaching-research position. Box 92, SCIENCE. X

Champlain College Closing-The campus of this Liberal ArtsCollege of the State University of New York at Plattsburgh, N. Y.is to be taken over by the Air Force. All faculty members havebeen notified of termination of appointments on June 30. Infor-mation concerning experienced teachers in Biology and Chemistryavailable for new positions may be obtained from Dr. F. H. Wilsonand Dr. C. Max Hull, respective heads of these departments. X

Organic Chemist, Ph.D. 20 years in pharmaceutical research lab-oratories, now in Government Laboratory about to be discon-tinued. Chemistry and isolation of natural compounds, alkaloids,sulfur compounds. Teaching experienice, languages. Desires positionin academic, industrial research or teaching. Part time considered.N.Y.C. preferred, but will relocate. Box 95, SCIENCE. 5/22

(a) Parasitologist; Ph.D.; (Minors: Nutrition, Biochemistry) ;five years' teaching, research. (b) Biologist; Ph.D., nine years'university teaching; present rank: professor of biology; capableadministrator. For further information, please write ScienceDivision, Medical Bureau (Burneice Larson, Director) PalmoliveBuilding, Chicago. x

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Page 10: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

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Page 11: FOOD FOR THOUGHT - Science...mmup to and including 48x60 mm 2.52 2.27 1.89 Ditto, No. 2 ..... 1.98 1.78 1.49 * One size, shape and thickness only. 15 TheReco ELECTRIC DESALTER For

c~~~~~~~~~~~~~~~~~~I,

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HavingSelecting the RIGH-T

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0 ofi\W)/} t g~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1.

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