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SCI E-NCE NEW SERIES SUBSCRIPTION, $6.00 VOL. 101, No. 2624 FRIDAY, APRIL 13, 1945 SINGLE GOPIES, .15 The New 2nd Edition WERTHEIM Organic Chemistry Ready May 1, 1945 By E. WERTHEIM, PH.D. Professor of Organic Chemistry, University of Arkansas This new edition of WERTHEIM'S ORGANIC CHEMISTRY is intended for students who will major in chemistry or specialize in organic chemistry and for those enrolled in premedical or chemical engineering courses. It provides ample material for a full year's work. A number of well planned improvements have been made. The order of some chapters has been rearranged and several topics shifted to facilitate use of the book. The text throughout has been brought up-to-date and many excellent new aids to study added. These include pictures of mo- lecular models of organic substances, new tables, new charts, many review questions and numeri- cal problems. Tables of constants, and other data have been reworked and brought up-to-date. More emphasis is given important subjects by the use of bold face type, and space has been saved by the use of new type sizes in the laboratory directions. Scientific data have been rechecked and extended, and the latest Atomic Weights incorporated. 187 more review questions and 224 more literature references are included. The author's Laboratory Guide for Organic Chemistry, 2nd Edition, provides a wide variety of suitable experiments for use with this text. THE B LAK ISTON COMPANY PhiPa.epi Published weekly by the American Association for the Advancement of Science at Lancaster, Pa. Entered as second-class matter July 18, 1923 at the Post Office at Lancaster, Pa., under the Act of March 3, 1879.

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  • SCIE-NCENEW SERIES SUBSCRIPTION, $6.00VOL. 101, No. 2624 FRIDAY, APRIL 13, 1945 SINGLE GOPIES, .15

    The New 2nd Edition

    WERTHEIMOrganic Chemistry

    Ready May 1, 1945

    By E. WERTHEIM, PH.D.Professor of Organic Chemistry, University of Arkansas

    This new edition of WERTHEIM'S ORGANIC CHEMISTRY is intended for students who willmajor in chemistry or specialize in organic chemistry and for those enrolled in premedical orchemical engineering courses. It provides ample material for a full year's work.

    A number of well planned improvements have been made. The order of some chapters has beenrearranged and several topics shifted to facilitate use of the book. The text throughout has beenbrought up-to-date and many excellent new aids to study added. These include pictures of mo-lecular models of organic substances, new tables, new charts, many review questions and numeri-cal problems. Tables of constants, and other data have been reworked and brought up-to-date.More emphasis is given important subjects by the use of bold face type, and space has been savedby the use of new type sizes in the laboratory directions. Scientific data have been rechecked andextended, and the latest Atomic Weights incorporated. 187 more review questions and 224 moreliterature references are included.

    The author's Laboratory Guide for Organic Chemistry, 2nd Edition, provides a wide variety ofsuitable experiments for use with this text.

    THE BLAKISTON COMPANY PhiPa.epiPublished weekly by the American Association for the Advancement of Science at Lancaster, Pa.

    Entered as second-class matter July 18, 1923 at the Post Office at Lancaster, Pa., under the Act of March 3, 1879.

  • 2 SCIENCE-ADVERTISEMENTS

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  • SCIENCE-ADVERTISEMENTS

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  • APRIL 13, 1945 SCIENCE-ADVERTISEMENTS 5

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  • 6 SCIENCE-ADVERTISEMENTS

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    6 SCIENCE-ADVERTISEMENTS VOL. 101, No. 2624

  • SCIENCE-ADVERTISEMENTS

    "I deliberately smeared 10 minims of machine oil on a condenser lens and re-moved every vestige of it with two sheets of dry tissue"-John Adam Knight,N. Y. Post, 1/14/43 in his column "Photography.'?

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  • 10 SCIENCE-ADVERTISEMENTS

    Physics students at Haverford College, using two L&N Resistance Boxesand an L&N Adjustable Mica Capacitor.

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    SCIENCE-ADVERTISEMENTS VOL. 101 No. 262410

  • VOL. 101 FRIDAY, APREi 13, 1945 No. 2624

    Full Employment After the War: How to Achieve it LEOPOLD R. CERECEDO, ROBERT P. MuLL and Pno-and Maintain it: DR. JOSEPH MAYER ............................. 367 PESSOR F. F. NOlD. Podoptera, a Homoeotic Mu-Obituary: tant of Drosophila and the Origin of the InsectRecent Deaths.................................... Wing: PROFESSORRIcHARDB. GOLDSCHamIDT ............ 381

    Scientific Events: Scientifict Apparatus and Laboratory Methods:The Royal Society; Affiliation of the Shell Develop- A Suggested Sterility Test for Penicillin: DR.ment Research Club with the Society of the Sigma ROBERT D. Mum and DR. GEORGE VALLEY. A Sim-Xi; The National Foundation for Infantile Paraly- ple Device for the Addition or Removal of Solu-sis; The Passano Foundation Award.372 tions or Gases to a Closed System: JOSEPHINE

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    FULL EMPLOYMENT AFTER THE WAR: HOW TOACHIEVE IT AND MAINTAIN IT'

    By Dr. JOSEPH MAYERBROOKINGS INSTITUTION, WASHINGTON, D. C.

    INTRODUCTORYON September 10, the first comprehensive official

    statement on postwar reemployment appeared in thepublic press in a report made by War MobilizationDirector Byrnes. This statement gives even morepoint to the proposals offered in the following pages,in that the major unemployment problems soon toconfront the nation seemed to be given short shrift.Director Byrnes asserted that only the "fears of timidpeople" stand in the way of continued employmentat the present high levels and that "the present na-tional income' should be maintained.'Address of the retiring vice-president and chairman

    of Section L of the American Association for the Ad-vancement of Science (1943). The views-expressed in thisaddress are those of. the author and do not necessarilyrepresent the views of his institution.

    At about the same time the public was advised thatone million soldiers and four million war workers willlose their jobs soon after X-day, the day the Nazis aredefeated. Putting millions of breadwinners back towork in peacetime occupations on short notice will beno mean job.

    Furthermore, our present war-level national incomeof 160 billions can not be maintained after the warwithout an enormous monetary inflation which nobodywants. Going back to the 40-hour week and returningmillions of youngsters, housewives and oldsters toschool, housework and retirement will of themselvesreduce the present national income very considerably.The proper postwar employment and income outlookshould not -be in terms of wartime over-employmentand consequent over-production, but in terms of what