426 INTRODUCTION TO CYTOLOGY 



19056. Studies on chromosomes. II. The paired microchromosomes, idiochromo- 



somes, and heterotypic chromosomes in Hemiptera. Ibid. 2: 507-546. 

 1905c. The chromosomes in relation to the determination of sex. Science 20: 



564. 



1906. Studies on chromosomes. III. The sexual differences of the chromosome 

 groups in Hemiptera, with some considerations on the determination and 

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1909a. Studies on chromosomes. IV. The "accessory" chromosome in Syro- 

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19096. Studies on chromosomes. V. The chromosomes of Metapodius. A 

 contribution to the hypothesis of the genetic continuity of chromosomes. Ibid. 



6 : 147-206. 1 pi. figs. 13. 



1909c The cell in relation to heredity and evolution. In " Fifty Years of Darwin- 

 ism." New York. 



1910. The chromosomes in relation to the determination of sex. Science Progress 



16 : 570-592. figs. 3. 

 1911a. The sex chromosomes. Arch. Mikr. Anat, 77 : 11 249-271. 5 figs.. 

 19116. Studies on chromosomes. VII. A review of the chromosomes of Nezara, 



etc. Jour. Morph. 22: 71-110. 1 pi. 

 1912a. Some aspects of cytology in relation to the study of genetics. Am. Nat. 



46 : 57-67. 

 19125. Studies on chromosomes. VIII. Observations on the maturation-phenom- 

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Wilson, E. B. and Morgan, T. H. 1920. Chiasmatype and crossing-over. Am. 

 Nat, 54: 193-219. figs. 8. 



von Winiwarter, H. 1912. Etudes sur la spermatogenese humaine. Arch, de 

 Biol. 27:91-189. pis. 6, 7. 



Wodsedalek, J. E. 1920. Studies on the cells of cattle with special reference to 

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pis. 5. 

 Wuist, E. D. 1913. Sex and development of the gametophyte of Onoclea struthiop- 



teris. Physiol. Res., Prelim. Abstr. 1: 93-94. 

 Yampolsky, C. 1919. Inheritance of sex in Mercurialis annua. Am. Jour. Bot. 

 6 : 410-442. pis. 37-40. 

 1920a. The occurrence and inheritance of sex intergradation in plants. Ibid. 7 : 



21-38. 

 19206. Sex intergradation in the flowers of Mercurialis annua. Ibid. 7: 95-100. 



pi. 5. 

 Zacharias, E. 1913. Die Chromatin-Diminution in den Furchungszellen von 



Ascaris megalocephala. Anat. Anz. 43: 33-53. figs. 2. 

 Zade, A. 1914. Serologische Studien an Leguminosen und Gramineen. Zeitschr. 



f. Pflanzenzuch. 2: 101-151. 

 1918. Der Hafer. Eine Monographic auf wissenschaftlicher und praktischer 



Grundlage. pp. 355. figs. 32. Jena. 

 Zoja, R. 1895. Sullo sviluppo dei blastomeri isolati uova di alcune meduse (e di 



altri organismi). Arch. Entw. 1 : 578-595. pis. 21-23; 2 : 1-37, pis. 1-4. 



