monographs 



15. 



R.S.KALTOFEN. 1971. EMBRYONIC DEVELOPMENT IN THE EGGS OP THE 



PEKIN DUCK, Embryonalentwlcklung in den Eiern der Pekineente 



(in English and German) 



Centre for Agric . Publ .and Documentation, Wagenlneen l? nn 



120 figs. D.fl. 12.00 (paper) & . f^ pp., 



This series of normal stages will be usefull particularly for 

 physiological, pathological, and teratologlcal studies on Pekin 

 duck embryos. It is not suitable for embryological studies in 

 the strict sense, because the stages are at one-day intervals 

 throughout, so that early embryogenesis is only represented by 

 three widely-spaced stages. 



For every incubation day (1-27) there are two or more photo- 

 graphs. The following features are illustrated: the opened egg 

 with the membranes intact; the same with part of the chorio- 

 allantols removed; the embryo proper; the right wing separately; 

 the right leg separately, sometimes in upper and side view. For* 

 each stage there is a short verbal description in English and 

 German, which Includes essential measurements; for later stages 

 these are the length of the third toe and the beak. The series 

 is based on about ^00 eggs. 



The quality of photography and reproduction is reasonable but 

 by no means optimal. The figures of the early embryos sometimes 

 suffer from incorrect illumination, while those of the early 

 limb stages are very small. 



16. 



H.G.MOSER'and E.H . AHLSTROM. 1970. DEVELOPMENT OF LANTERNPISHES 



(FAMILY MYCTOPHIDAE) IN THE CALIFORNIA CURRENT, Part I. Species 



with narrow-eyed larvae 



Los Angeles County Museum, Los Angeles. Bull. Los Angeles County 



Mus.Nat .Hist. , Sci. nr . 7 . 1^5 pp., 53 figs., 44 tabs. 



General features of postembryonic development; description of 

 larvae of l4 species belonging to 11 genera; beautifully illus- 

 trated. 



17. 



V.V.ROL'NIK. 1970. BIRD EMBRYOLOGY, translated from the Russian 

 Israel Program for Sclent .Translations , Jerusalem. VI, 379 pp., 

 58 figs., 52 tabs., subject index. $ 17.00 



Contents: I. The egg and embryo development prior to incuba- 

 tion (5 chapters); II. Morphology and physiology of embryo de- 

 velopment (12 chapters); III. Necessary environmental condi- 

 tions for the development of bird embryos (5 chapters) 



This is the translation of a book first published in Russian 

 in 1968. The present title is unfortunate, the original title 

 "Embryonic biology of avian development" being more appropriate. 

 The author considers avian development from a general biological 

 and physiological viewpoint, and has deliberately largely omitted 

 descriptive and experimental morphology. The book is tailored to 

 the needs of workers in poultry science, agricultural production, 

 etc. rather than of embryologists in the usual sense. Neverthe_ 

 less, it contains much valuable information for avian embryol- 

 ogists. The author has been active in this field for over 30 

 years, and is at present associated with the Sechenov Institute 

 of Evolutionary Physiology and Biochemistry. 



An interesting feature of the book for readers in the West is 



17 



