760 ■ THE AMERICAN NATURALIST. [Vol. XXXVIII. 



TiMBERLAKE. 



: 02. Development and structure of the swarmspores of Hydrodictyon. 

 Trans. Wis. Acad. Sci. Arts and Letters 13, 486. 

 Van Hook. 



: 00. Notes on the division of the cell and nucleus in liverworts. Bot. 

 Gaz. 30, 394. 

 Wager. 



'99. On the eye-spot and flagellum in Euglena viridis. Jour. Linn. Soc. 

 27, 463. 

 Webber. 



'97a. Peculiar structures occurring in the pollen tube, of Zamia. Bot. 

 Gaz. 23, 453- 

 Webber. 



'97^. The development of the antherozoids of Zamia. Bot. Gaz. 24, 16. 

 Webber. 



97^:. Notes on the fecundation of Zamia and the pollen tube apparatus 

 of Ginko. Bot. Gaz. 24, 225. 

 Webber. 



: 01. Spermatogenesis and fecundation of Zamia. Bu. Plant Ind. U. S. 

 Dept Agri. Bull.' 2. 



WiEGAND. 



'99. The development of the microsporangium and microspores in Con- 

 vallaria and Potomogeton. Bot. Gaz. 28, 328. 

 Williams, Clara I. 



'99. The origin of the karyokinetic spindle in Passiflora coerulea. Proc. 

 Gal. Acad. Sci. Bot. 1, 189. 

 Wilson. 



: 00. The cell in development and inheritance. New. York. 

 Zacharias. 



'87. Beitrage zur Kenntniss des Zellkerns und der Sexualzellen. Bot. 

 Zeit. 45, 345. 



ZiMMERMANN. 



'93, '94. Sammel-Referate aus dem Gesammtgebiete der Zellenlehre. 

 Beihf. z. bot. Centb. 3, 206, 321, 401 (1893), 4, 81, 161, 321 (1894). 



ZiMMERMANN. 



'96. Die Morphologic und Physiologic des PflanzHchen Zellkernes. 

 Jena. 



( To be continued.) 



