VUVUUUDUUUPPYUUP DUPED UD 
ERRATA. 
13, line 6, for ‘‘dichotomous by’’ read dichotomously. 
21, line 15, for first ‘‘of’’ read by. 
21, line 14 from below, for ‘‘or’’ read and. 
22, line 5 from below, for first ‘‘is’’ read functions as. 
39, line 2 from below, for ‘‘Sandburg’’ read Sandberg. 
66, line 2 from below, for ‘‘371'’ read 372. 
92, line 19 for ‘‘patatoes” read potatoes. 
125, line 13, for ‘‘controspheres” read centrospheres. 
126, line 7, for ‘‘controsomes”’ read centrospheres. 
133, line 8, for ‘'4-6-’’ read 1-6-, 
147, line 17, for ‘‘made useful’’ read put to ne useful end. 
147, line 8 from below, for ‘‘second” read third. 
148, line 3, for ‘‘an"’ read a —— 
148, dele last sentence in paragraph 2 
148, line 23, for ‘‘Cohobba’’ oe Gchahna: 
149, line 19, for ‘‘Hogan’’ read Logan 
150, line 5, for ‘‘Mancas’’ read Mancos. 
161, line 10, for ‘‘he’’ read the 
206, line 6, for Mt oarene ed amulenia, 
241, line 8, add’ at end. 
278, line 18 from holes for ‘‘simply’’ read simple 
- 281, below figure insert explanation: Diagram of longitudinal section of 
root tuber of Jsopyrum occidentale.—a, endodermis; 4, proto-xylem; ¢, 
pericycle; d, xylem; ¢, medulla; /, sclerenchyma. 
DATES OF PUBLICATION. 
No. 1, January 16; No. 2, dees 18; No. 3, March 28; No. 4, April 25; 
No 5, May 20; No. 6, June t 
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