23 



21 GENETIC CONTROL OF DIFFERENTIATION 



1965 



Brookhaven National Laboratory Brookhaven National Laboratory 



Brookhaven Symposia in Biology, Upton, New York 



vol. 18. 277 pp., 110 figs.. 24 tbs. Price: $ 3.— 

 (paper-bound) 



Contributors: Allen (Ann Arbor, Mich.), Clever (Lafayette, Ind.), Davidson (New York, N.Y.), 

 Ganschow (Buffalo, N.Y.), Hadorn (Zurich), McClintock (Cold Spring Harbor, NY.), Mirsky 

 (New York, NY.), Paigen (Buffalo, N.Y.), Pavan (Oak Ridge, Tenn.), Schultz (Philadelphia, 

 Pa.), Siegel (Los Angeles, Calif.), Smith (Baltimore, Md.), Stebbins (Davis, Calif.), Sussman 

 (Waltham, Mass.). Umbarger (Lafayette, Ind.), Ursprung (Baltimore, Md.), Werz (Wilhelms- 

 haven). 



The 18th Brookhaven Symposium was held at Upton, N.Y. in June 1965. 

 It had more than 300 participants; of the 18 contributors, two came from 

 countries other than the U.S.A. All contributors are active workers in the field 

 concerned. The 14 papers range in size from about 10 to about 30 pages, and 

 most are followed by short discussions in which members of the audience took 

 part. 



The papers are arranged in six groups (sessions) of 1 - 3 papers each, 

 which discuss the genetic control of differentiation at the biochemical level, 

 at the chromosome level, in lower forms (ciliates and slime molds), in multi- 

 cellular animals (snails, insects, amphibians, and mammals), and in plant 

 development (algae and higher plants). 



The book is well-illustrated and has a subject index and an index of 

 speakers. 



22. CELL DIFFERENTIATION AND MORPHOGENESIS 



1966 

 International Lecture Course North-Holland Publishing Cy. 



Wageningen, The Netherlands Amsterdam 



217 pp., 100 figs., 13 tbs. Price: 72s. 



Contents: General introduction, general factors of embryonic differentiation (E. Wolff): 

 Differentiation at the level of the chromosomes (W. Beermann); Factors affecting differentiation 

 of plant tissues grown in vitro (R. J. Gautheret); Leaves and buds: mechanisms of local induction 

 in plant growth (C. W. Wardlaw); Induction and pattern formation as primary mechanisms in 

 early embryonic differentiation (P. D. Nieuwkoop); Hormonal regulation of plant development 

 (J. A. D. Zeevaart); Hormonal regulation of differentiation in insects (V. B. Wigglesworth). 



This book embodies the seven lectures presented at an International Sym- 

 posium held at the Agricultural University of Wageningen, Netherlands, in 

 April 1965. All lectures are extensive reviews summarizing the present status 

 of knowledge in their respective fields. They range in size from 23 - 45 pages, 

 and together provide an overall view of the problems of differentiation and 

 morphogenesis in a variety of developmental systems. Discussions are not 

 recorded. A noteworthy feature of the book is the confrontation of the zool- 

 ogical and botanical approaches to the central problem of differentiation. 



One paper approaches the subject at the subcellular level. The other six 

 papers largely confine themselves to the cellular and supracellular levels. Two 

 of these focus mainly on hormonal regulation of differentiation. The developing 

 systems represented are the plant embryo, the plant meristem, plant tissues 



