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attraction of additional material. It is also to be remem- 
bered that the collections of living and dried plants, to- 
gether with the library, constitute the basic elements in our 
scientific work, which must be provided for, if our develop- 
ment is to continue. 
The library accommodations present the same condition 
of overcrowding as do those of the herbarium. 
Fourteen special students, exclusive of visiting botanists, 
have been engaged on research problems during the year. 
The most of this work has been in the direction of cytology 
and genetics, the subjects having included Primula, varie- 
gated forms of Tussilago, Catharanthus, Eschscholtzia, 
Cichorium, Hibiscus, and Carex. One student has engaged 
in a study of the black oaks of southern New Jersey, with 
special reference to hybridity. Two have pursued studies 
in pathology. One has continued his investigations of the 
flora of western Tibet. Professors Harper and Gies have 
carried out their plan, announced in our last report, of 
studying chemically the pigments in the leaves of Coleus. 
The Directors have given some thought to the increasing 
tendency of research students to pursue their botanical 
work at the several university laboratories of the City. 
The incomparable natural advantages at such an institution 
as ours for the pursuit of every form of botanical research 
should cause it to be sought by all intending to engage in 
such work. The probable reasons for the tendency to 
select other laboratories were made the subject of special 
discussion at our December meeting. It appears that the 
several university departments have made a bid for this 
class of students by greatly improving their laboratory and 
teaching equipments, and the location of these on the 
university grounds is found more convenient than that of 
ours. In spite of these facts, however, we believe that a 
proper and sufficient effort on our own part should result in 
making the attractions of the Garden laboratories para- 
mount, and we have delegated a special study of such re- 
quirements to Professors Harper and Gies. 
