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Annual Reports of Academy of 
not yet in the herbarium; and the mounting of the rich herbaria 
of Mr. C. W. Short, one of the chief private American herbaria of 
the past century; of Prof. T. C. Porter, for many years the most 
prominent student of Pennsylvania plants; and of several others, 
is much to be desired. 
The housing of the Herbarium in metal dust-proof and insect- 
proof cases has just been completed. The mounted collection is 
now, excepting a portion of the local herbarium, safely cared for. 
The rearranging of the general herbarium for the purpose of 
facilitating rapid geographical reference has enlisted a number of 
volunteer assistants, especially Dr. Henry Lehman, and Miss 
Alice O. Albertson, to whom our thanks are due. 
During the college year of 1921-22, we were fortunate in having 
the assistance of Mr. John M. Fogg, Jr., a student of the University 
of Pennsylvania, who rendered invaluable assistance and took 
general care of the department during Dr. Pennell’s absence in 
South America. 
Research study in the herbarium has been much aided by the 
addition to our equipment of a modern binocular microscope, but 
owing to absence on field-work, Dr. Pennell has accomplished little 
new study during the year. The study of the Scrophulariaceae 
of the central Rocky Mountain States has been nearly completed; 
and notes prepared dealing with the species of this family in the 
Santa Catalina Islands, California, and of the genus Pentstemon in 
Indiana. A paper on the Scrophulariaceae of the west Gulf 
States has been published in the Proceedings of the Academy. 
From April 25 until October 18, Dr. Pennell was engaged in 
botanical collecting and exploration in the northern Andes of 
Colombia, as already explained; and besides the work of collecting, 
special field work was done in the study of the Andean Scrophu¬ 
lariaceae, and in the distribution of the plant life of the high 
cordilleras. 
The local herbarium continues under the efficient care of Mr. 
Bayard Long. Work has progressed in the geographical sorting 
of the specimens, and the collection is second to none in its preserv¬ 
ation and arrangement. New metal cases, have permitted a much 
needed expansion. Since February, Mr. George W. Bassett has 
been employed in mounting specimens. This enables us to add 
Mr. Long’s very extensive personal collections, which consist of 
valuable and unusually beautiful specimens. 
