213 
“Rhizoctonia a cause of weak germination of 
the potato.” Read by title. 
MEK 
“Native ees in the Lake Okoboji ee 
egion: their ecological significance.” Illu 
ee a lantern ot Discussion by N. L 
; Britton and R. E. C 
Eighty-six persons were in aa aes at this aft 
4:00-6:00 Inspection of the Herbaceous Garden Valley, Decid- 
s Woodlands and Hemlock Forest, Frutice- 
tum, and West Border to Elevated Railway. 
WEDNESDAY, SEPTEMBER 8 
Sali Water Day on Staten Island in Cooperation with the Staten 
Island Association of Arts and Sciences 
Most of the members of the excursion party on this occasion 
left Manhattan by the Staten Island Ferry at the foot of White- 
hall Street at 10 A. M., connecting at St. George with a train for 
Great Kills. From the Great Kills station, under the leadership 
of Dr. Arthur Hollick of the Staten Island Association of Arts 
re 
shore dinner’? at Sauer’s Restaurant. Afterwards, by use of 
motor boats, sand ea and cally marshes of Crooke’s Point 
were visited, a pes of littoral vegetation 
were pee a discussed. 
THURSDAY, SEPTEMBER 9 
10:30-1:00 Session for the reading of nae under the chair- 
manship of D. T. MacDouca: 
S. ALEXANDER 
“New species of Helianthus.’ Ilustrated by 
specimens and lantern slides 
GEoRGE F. ATKINSON 
“Development of Lepiota cristata and L. 
seminuda."' Illustrated by lantern slides. 
