gical, and experimental examples relating to a very wide range of organisms. 



Apart from a number of graphs and line drawings, the book is illustrated 

 with a series of 30 beautiful engraved plates, which show the life cycles of 

 a variety of unicellular organisms, plants, and animals. Each plate also shows 

 the size variations of the cycle in question, plotted on logarithmic coordinates, 

 and each has an explanatory legend. 



The book is well produced. It is concluded by a bibliography and an alpha- 

 betical index. 



4 PHYSIOLOGY OF ECHINODERMATA 



1966 



Editor: R. A. Boolootian Interscience Publishers 



840 pp., 330 figs., 86 tbs. John Wiley & Sons 



New York _ London - Sydney 

 Price: $ 45.— 



Contributors: Alender (Los Angeles, Calif.), Anderson (Ithaca, N.Y.), Binyon (Surrey), 

 Boolootian (Los Angeles, Calif.), Christensen (Helsingor), Davenport (Santa Barbara, Calif.), 

 Delavault (Orleans), Endean (Brisbane, Australia), Farmanfarmaian (Teheran), Feder (Sa- 

 linas, Calif.), Fell (Cambridge, Ma^s.), Fox (La Jolla, Calif.), Giese (Stanford, Calif.), 

 Hopkins (Sarasota, Fla.), Maggio (Palermo), Millott (London), Monroy (Palermo), 

 Moore (Miami, Fla.), Nichols (Oxford), Pawson (Washington, D.C.), Raup (Rochester, 

 N.Y.). Reese (Honolulu), Russell (Los Angeles, Calif.). Smith (Plymouth), Swan 

 (Durham, N.H.), Takahashi (Tokyo), A. Tyler (Pasadena, Calif.), B. S. Tyler (Pasadena, 

 Calif.), Vevers (London), Welsh (Cambridge, Mass.), Yoshida (Okayama) 



This comprehensive work is the collaborative effort of 31 authors, 18 

 Americans and 13 from various other countries. It is not our intention to 

 review it extensively, but only to mention those 7 chapters out of the total 

 number of 30 which are of particular significance to embryologists. This of 

 course does not mean that many other chapters do not contain much that may 

 be of interest to individual workers. 



The book is opened by a chapter by Fell and Pawson on General biology 

 of echinoderms (48 pp.)- including sections on evolution, comparative mor- 

 phology, systematics, and development. Growth, autotomy, and regeneration 

 are discussed in a chapter by Swan (39 pp.). Reproductive physiology is 

 treated by Boolootian (55 pp.). and sex determination by Delavault (25 pp.. 

 including brief discussions of fission and gonadal regeneration). Tyler and 

 Tyler have contributed two important chapters, one on the gametes (45 pp., 

 the first 10 of which deal with laboratory procedures for keeping Echinoderms, 

 induction of spawning, artificial fertilization etc.), and one on the physiology 

 of fertilization and early development (61 pp.). Finally, Monroy and Maggio 

 deal with amino acid metabolism in the developing embryo (15 PP-)- 



Experimental embryology, as apart from chemical embryology, is not dis- 

 cussed as such in the book, although both the Tylers and Monroy and Maggio 

 touch the problem of embryonic determination in their discussions. 



The book is profusely and beautifully illustrated. It is concluded by indexes 

 to authors, species, and subjects. The price of the book is prohibitive, partic- 

 ularly for the non-American market. 



5 SEX CHROMOSOMES AND SEX-LINKED GENES 



1967 

 by S. Ohno Springer Verlag 



Monographs on Endocrinology, Vol. 1 Berlin - Heidelberg - New York 



202 pp., 33 figs., 2 tbs. 



The content of this monograph, written by an outstanding specialist in the 

 field, is almost entirely genetical in character. Only one of the 14 chapters 

 discusses ontogenetic aspects. Nevertheless, for workers active in devel- 



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