Tilden: bibliography of American algae. 391 



1196. Smith, H.L. A Contribution to the Life History of the 

 Diatomaceae. Part I.— (Proc. Am. Soc. Mic. 30-66. 5 pi. 1886- 

 1887.) Part II.— (Proc. Am. Soc. Mic. 126-167. 6 pi. 1887.) 

 — (Bull. Torr. Bot. Club. 14:170, 171. Agl887.)— (The Micro- 

 scope. 7:274. S1887.) 



1197. . List of Species and some Notes upon them. 



B. W. Thomas' "Diatomaceae of Minnesota Inter-glacial Peat." 

 20th Ann. Rep. 1891. 293-306. 1893. 



1198. . The Study of "Difficult" Diatoms. Am. Nat. 



6:444. J11872. 



See Edwards, A. M., Johnston, C. and 



Smith, H. L. 



. See Kitton, F. and Smith, H. L. 



1199. Smith, J. G. and Pound, R. Flora of the Sand Hill 

 Region of Sheridan and Cherry counties and List of Plants 

 collected on a Journey through the Sand Hills in July and 

 August, 1892. Bot. Surv. Neb. 2:5-30. 1893. 



Five species of algae named. 



1200. Smith, T. Notes on the Biological Examination of 

 Water, with a few Statistics of Potomac Drinking Water. 

 —(Am. Mo. Mic. Jour. 7:61-64. Apl886.) 



Abstract of a communication presented to the Biological Society of 

 Washington, Mar. 20, 1886. 



1201. Smith, T. F. On the Structure of the Pleurosigma 

 Valve. Jour. N. Y. Mic. Soc. 7 : 61-73. pi. 26, 27. (2Ja.) Apl891. 



1202. Smith, U. €. Hydrodictyon. Proc. Phil. Acad. 

 1893:580. (26D.) OND1893. 



Specimen added to Museum. 



1203. SoIJas, W. J. Cutting Sections of Diatoms. The 

 Microscope. 4:139. 1884.— (Zeit. wiss. Mik. 1:624. 1884.) 



1204. Southwick, E. B. Protococcus viridis. Jour. N. Y. 

 Mic. Soc. 2 : 1-8. p^. ^, ;?. (18D1885.) Jal886. 



A list of trees affected by P. viridis in Central Park, 



1205. Spalding, V. M. Development of the Sporocarp of 

 Griffithsia bornetiana. (Proc. Am. Ass. Adv. Sci. 39:327. 

 (Agl890.) J11891.) 



1206. Spegazzini, C. Characeae platenses. Anal. Soc. 

 Cient. Argent. 15: 218-28L 1883. 



Five new species. 



1207. Stalker, M. Report on the Waterville Cattle Disease. 

 Fourth Bien. Rep. Bd. Regents Univ. of Minn. Suppl. I. Rep. 

 Dept. Agric. Univ. of Minn. 105-108. 1887. 



