ERRATA 
Dates of Publication 
1, for January. Pages 1-56. Issued February 27, 
2, Febru §7-112. pril 9, 
3, March. 113-166. May 7, 
» a Apel, 167-220. June 11, 
5, « May. 221-270. July 10, 
6, June. 271-328. uly 26, 
7s uly. 329-386. September 12, 
8, August. 387-444- October 10, 
9, September. 445-490. October 19, 
. 10, October. 491-532. December 17, 
. 11, November, 533-578. January II, 
. 12, December. 579-630. February 27, 
Errata 
Page 221, title, for qollen read pollen. 
Page 255, line 2, for 1869 read 1896. 
Page 411, line 31, for Pucinia read Puccinia. 
Page 423, line 23, for Gooding read Goodding. 
Page 430, line 6, for Zedypodium read Thelypodium. 
Page 573, line 15, for 1897 read 1907. 
