ERRATA 
VotumE XLVIII 
P. 69, last line, for tubellarian read turbellarian. 
VotuME XLIX 
P. 102, table IV, transfer plants from first line of legend to first word in second 
ine. 
P. 114, table I, last line, ratio should read 212: 2% : 114. 
P. 120, fig. 1, below five vertical lines Spectr second from left) insert respec- 
tively, left to right, 0%, 25%, 50%, 75%, 100%. 
y Opposite horizontal lines insert respectively, bottom to top, 0, 5, 10, 15; 
20, 25. 
P. 121, fig. 2, below vertical lines insert respectively, eas with second, left 
to right, 30%, 40%, 50%, 60%, 70%, 80%, 90 
oss horizontal lines insert respectively, aan to top, 0, 5, 10, 15, 
20, 25, 3 
P. 133, line 5 oa bottom, for Hammamelis read Hamamelis. 
P. 136, line g from bottom, for artemisiaefolia read artemisiifolia. 
, line 7 from bottom, for canadense read canadensis. 
Ee. 240. sitive 7 from bottom, for rangifera read rangiferina. 
P. 155, line 2, for aso read also. 
, line 7, for Morremia read Morrenia. 
, line 7 from bottom, for Wolff, K. read Wolff, H. 
156, line 7 from bottom, for Polyblastis read Polyblastia. 
177, line 16, for Greeman read Greenman. 
180, citation 17, for Wachen read Wachsen. 
267, fig. 7, line 2 of legend, for smaller read greater. 
310, line 24 from top, for Scaveola read Scaevola. 
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