298 
both Columbia College and Harvard University, but the condi- 
tion at neither place was much better. The trouble seemed to 
be that too many different forms were put together under the same 
name. I returned to the University of Nebraska with the deter- 
mination to try to revise the genus if possible. 
Through the negotiations of Dr. Chas. E. Bessey I secured the 
loan of nearly every collection of value in this country, both 
public and private. I hereby extend my thanks to professors and 
curators of the following institutions, whose collections I have 
used: United States Department of Agriculture, Missouri Botanical 
Garden (including the Engelmann and Bernhardi collections), Co- 
lumbia College (including the Torrey and Meisner collections), 
Cornell University, University of Minnesota, University of Tennes- 
see, University of Indiana, California Academy of Sciences, Phila- 
delphia Academy of Sciences, Agricultural College of Iowa (in- 
cluding the Parry and Pammel collections), Agricultural College 
of Michigan, Oberlin College, Ind., Franklin and Marshall Col- 
lege, Lancaster, Pa., and the University of Wyoming,* and also 
to the following persons who kindly loaned me their private col- 
lections: Prof. E. L. Greene, Dr. J. M. Coulter, Prof. F. D. Kel- 
sey, Dr. A. W. Chapman, Messrs. J. Donnell Smith, Walter Deane, 
Cambridge, Mass., B. S. Parish, San Bernardino, Cal., E. L. Suks- 
dorf, White Salmon, Wash., Rev. A. B. Langlois, St. Martinsville, 
La; Rev. L. H. Lighthipe, Woodbridge, N. J., and Miss Frances 
Wilson, Rocky Hill, Ct. Owing to certain rules passed by the 
Trustees of the Gray Herbarium, I could not secure the loan of 
the collection of Physalis at Harvard, but Dr. B. L. Robinson 
kindly sent all type specimens asked for, and last fall I had 
occasion to spend two days in the Gray Herbarium, when I saw 
the whole collection. For this privilege, as well as for the use of 
the botanical library there I am very grateful, as also for the 
privilege of looking over the herbarium of the College of Phar- 
macy, New York City. I also wish to extend my thanks to Dr. 
Chas. E. Bessey and Dr. N. L. Britton for valuable suggestions 
and help in my work. 
; The only collection in this country which I wished to see and 
* Of course, I also had access to Toc of the University of Nebraska and 
of the Botanical Survey of the same State 
