LITERATURE 231 



development we reach therefore the following conception . From the 

 mother comes in the main the cytoplasm of the embryonic body which 

 is the principal substratum of growth and differentiation. From both 

 parents comes the hereditary basis or chromatin by which these pro- 

 cesses are controlled and from which they receive the specific stamp of 

 the race. From the father comes the stimulus inducing the organiza- 

 tion of the machinery of mitotic division by which the egg splits up 

 into the elements of the tissues, and by which each of these elements 

 receives its quota of the common heritage of chromatin. Huxley hit 

 the mark two score years ago when in the words that head this chap- 

 ter he compared the organism to a web of which the warp is derived 

 from the female and the woof from the male. Our principal advance 

 upon this view is the knowledge that this web is probably to be sought 

 in the chromatic substance of the nuclei ; and perhaps we shall not 

 push the figure too far if we compare the amphiaster to the loom on 

 which the fabric is woven. 



LITERATURE. IV * 



Van Beneden, E. Recherches sur la maturation de 1'oeuf, la fe'condation et la divi- 

 sion cellulaire: Arch. Biol., IV. 1883. 

 Van Beneden and Neyt. Nouvelles recherches sur la fe'condation et la division 



mitosique chez TAscaride me'galocephale : Bull. Acad. roy. de Belgique, III. 14, 



No. 8. 1887. 

 Boveri, Th. Uber den Anteil des Spermatozoon an der Teilung des Eies : Sitz.- 



Ber. d. Ges.f. Morph. u. Phys. in Munchen, B. III., Heft 3. 1887. 

 Id. Zellenstudien, II. 1888. 



Id. Befruchtung : Merkel und Bonne fs Ergebnisse, I. 1891. 

 Id. Uber das Verhalten der Centrosomen bei der Befruchtung des Seeigeleies, etc. : 



Verhandl. Phys. Med. Ges. Wurzburg, XXIX. 1895. 

 Biitschli, 0. Studien Uber die ersten Entwicklungsvorgange der Eizelle, u. s. w. : 



Abh. Senckenb. Ges., X. 1876. 

 Coe, W. R., 99. The Maturation and Fertilization of the Egg of Cerebratulus : Zool. 



Jahrb., XII. 

 Fick, R. Uber die Reifung und Befruchtung des Axolotleies : Zeitschr. Wiss. Zool., 



LVI. 4. 1893. 

 Griffin, B. B. Studies on the Maturation, Fertilization, and Cleavage of Thalassema 



and Zirphaea: Journ. Morph., XV. 1899. 

 Guignard, L. Nouvelles e'tudes sur la fe'condation : Ann. d. Sciences nat. Bot., 



XIV. 1891. 

 Hartog, M. M. Some Problems of Reproduction, etc. : Quart. Journ. Mic. Sci., 



XXXIII. 1891. 

 Hertwig, 0. Beitrage zur Kenntniss der Bildung, Befruchtung und Teilung des 



tierischen Eies, I. : Morph. Jahrb., I. 1875. 

 Hertwig, R. Uber die Konjugation der Infusorien: Abh. d. bayr. Akad. d. Wiss., 



II. Cl. XVII. 1888-89. 

 Id. Uber Befruchtung und Konjugation: Verh. deutsch. Zool. Ges. Berlin, 1892. 



1 See also Literature, V., p. 287. 



