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the small type supplementary material for more advanced students, especially
those with medical background. An attempt has been made to review the worldliterature
on embryology since 1943, in particular as far as it affects human
development.
In the first part general developmental aspects have been given, while in the
second part the various organ systems have been treated systematically, grouped
into entodermal, mesodermal and ectodermal derivatives. A laboratory manual
of the embryology of the chick and the pig is added in order to make the
development of the human fetus more easily understandable.
Besides the normal development, the main results of the experimental analysis
in other groups of Vertebrates are given in the textbook on human embryology
in order to give the student some insight in the causal relationships which
lead to the special form and structure of the individual organ systems and
which might lead under abnormal conditions to an aberrant development.
The form of presentation of the material is very instructive, and the clearly
written text is well illustrated. The present form of this textbook with large
and small type is therefore very successful. The large number of references at
the end of each chapter will stimulate further reading. We should therefore
like not only to recommend it warmly as an excellent textbook on human embryology,
but also to congratulate the author on this successful revision of the
book.
P. D. NIEUWKOOP
"TRATTATO DI ISTOLOGIA"
4th revised and enlarged edition, 1954
by G. Levi In two volumes
1171 pp. with 839 figs, partly in colour Unione Tipografico-Editrice Torinese
Price: L. 12.000,—
In this fourth edition the chapters on mitosis and meiosis have been considerably
extended. During recent years two fields of analysis have made particularly
rapid progress, the analysis of the ultrastructure of the cell, and that of
the chemical composition of cells and tissues. The results of the first field are
extensively incorporated in this edition. Some of the most recent data in the
field of histo- and cytochemistry are considered by the author as being still
too premature to stand all criticism. They have therefore only partially been
incorporated in this edition.
This book is primarily meant for students in medicine, but may according to
the author also be useful for postgraduates in medicine and natural sciences.
After an extensive description of the methodology and general properties
of the living substance in the first part, the second part deals with the cellular
structures, and finally the third part, covering the last chapters of the first and
the entire second volume, deals with the various tissues. The second and third
parts are treated systematically.
This very well organized textbook gives an enormous wealth of information,
not only on morphological, but also on histophysiological and to some extent on
histochemical data. Besides the adult structures many data on the embryological
development, descriptive as well as experimental, have been incorporated.
Regeneration and tissue culture in particular are extensively treated.
We consider that some of the pictures should be replaced by better examples
and, more especially, that they could be reproduced better. Particularly the
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