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various invesitgations carried on by students, by Professor 
R. A. Harper and by myself. Cold frames constructed last 
spring will relieve to a considerable extent the usual conges- 
tion of the greenhouse during the spring months. A work 
room arranged for student use at the propagating houses 
would be a desirable feature. 
Some additions have been made to the species grown 
because of their special interest to botanists. Among these 
are Oenothera grandiflora, O. Traceyi and three biotypes of 
O. cruciata. Four types of tomato-nightshade chimeras 
produced by Dr. Hans Winkler have been obtained through 
the courtesy of Dr. Winkler. The history and description 
of these chimeras was given in an article in the August 
number of the Garden Journat. From the Bureau of 
Plant Industry, United States Department of Agriculture, 
the Garden obtained a plant descended through vegetative 
propagation from the hybrid between the carnation and the 
sweet-william made by Thomas Fairchild about 1710. It 
is claimed that this is the first plant hybrid produced 
experimentally. Continued efforts will be made to assemble 
plants of particular interest to students of heredity. 
Routine Duties 
The duties concerned with the taking of the meteoro- 
logical records and the secretaryship of the monthly con- 
ferences have, during the year, been performed along the 
lines indicated in my previous report. The duties incident 
to the editorship of THE JournaL or THE NEw York 
Botanica, GARDEN were assigned to me, beginning with 
the issue of January, 1913. 
Personal Investigations 
Experimental studies in genetics have occupied much of 
my time, especially during the summer months. 
Several cultivated varieties of Cichorium Intybus were 
grown for the purpose of comparison with the common 
wild strains. F, generations of crosses between white- 
