PAPENFUSS: CLASSIFICATION OF THE ALGAE 223 



Wallicu, G. C. (Cont.) 



1860a. Results of soundings in the north. Atlantic. Ann. Mag. Nat. Hist., ser. 3, 



6:457-458. 

 1860b. On the development and structure of the diatom-valve. Trans. Micro. Soc, n. s., 



8:129-145. 

 1861. Remarks on some novel phases of organic life, and on the boring powers of 



minute annelids, at great depths in the sea. Ann. Mag. Nat. Hist., ser. 3, 



8:52-58, 7 figs. 

 1865. On the structure and affinities of the Polycystina. Trans. Micro. Soc. London, 



13:57-84. 

 1869. Coccoliths and coccospheres. Quart. Journ. Micr. Sci., 17:77-78. 

 1877. Observations on the coccosphere. Ann. Mag. Nat. Hist., ser. 4, 19:342-350, pi. 17. 



Wallroth, F. W, 



1815. Annus botanicus, sive supplementum tertium ad C. Sprengelii floram halensem. 



Cum tractatu et iconibus VI Charam genus illustrantibus. xxx + 200 pp., 6 pis. 



Halle: Kiimmel. (Not seen.) 

 1833. Flora cryptogamica germaniae. Pars posterior [=Vol. 2], continens algas et 



fungos. Ivi + 923 pp. Niirnberg: Schrag. 



Walz, J. 



1866-1867. Beitrag zur Morphologie und Systematik der Gattung Vaucheria DC. 

 Jahrb. Wiss. Bot., 5:127-160, pis. 12-14. 



Warming, E. 



1876. Om nogle ved Danmarks kyster levende Bakterier. Videnskab. Medd. Dansk 



Naturhist. Foren. Kj0benhavn, 1875:307-420, pis. 7-10. 

 1890. Handbuch der systematischen Botanik. (Translated from the 2nd Danish ed., 



1884, by E. Knoblauch.) xii + 468 pp., 573 figs. Berlin: Gebr. Borntraeger. 



Weismann, a. 



1887. Ueber die Zahl der Richtungskorper und iiber ihre Bedeutung fiir die Verer- 

 bung. viii + 75 pp. Jena: G. Fischer. 



West, G. S. 



1904. A Treatise on the British Fresh-water Algae, xv + 372 pp., 166 figs., frontis. 



Cambridge Univ. Press. 

 1916. Algae. Vol. 1 [only vol. published], viii + [2] +475 pp., 271 figs. Cambridge 



Univ. Press. 

 1927. A Treatise on the British Fresh-water Algae . . . Rev. ed. by F. E. Fritsch. 



xvii + [1] + 534 pp., 207 figs., frontis. Cambridge Univ. Press. 



West, W., and G. S. West 



1897. Welwitsch's African fresh-water algae. Journ. Bot., 35:1-7, 33-42, 77-89, 113-122, 

 172-183, 235-243, 264-272, 297-304, pis, 365-370. 



Wettstein, R. R. 



1901. Handbuch der systematischen Botanik. Bd. 1. ix + [1] + 201 pp., 126 figs. 



Leipzig and Vienna: Deuticke. 

 1924. Handbuch der systematischen Botanik. 3rd ed. viii + 1017 + [1] pp., 653 figs. 



Leipzig and Vienna: Deuticke. 



WlLLE, N. 



1890-1891. Conjugatae [und] Chlorophyceae. In A. Engler, Die natiirlichen Pflanzen- 

 familien . . . Teil I, Abt. 2. Pp. 1-175, 128 figs. Leipzig: W. Engelmann. 



1894. Ueber die Befruchtung bei Nemalion multifidum (Web. et Mohr) J. Ag. Ber. 

 Deutsch. Bot. Ges., 12 [Suppl.] : (57)-(60), 6 figs. 



