5 
Cay 
g. Microscopic PREPARATIONS AND Drawincs Illustrating a 
Comparative Study of the Bark of Juglans cinerea at 
Different Seasons. Exhibited by Marion McEwen (Bar- 
nard College). 
This study was undertaken in the interest of Research 
Committee C (investigating powdered drugs) of the Re- 
vision Committee of the United States Pharmacopzia, to 
discover characters in powdered Butternut bark, by which 
it could be determined whether it had been collected in 
the autumn as required. - 
10. SPECIMENS OF SEEDS, Microscopic PREPARATIONS AND 
Drawincs Illustrating a Comparative Study of the Anat- 
omy of the Strophanthus Seeds of Commerce. Exhibited 
by Prof. Smith Ely Jelliffe, M.D. (College of Phar- 
macy). 
This study was undertaken under the same auspices as 
the last, for the purpose of discovering characters for dis- 
tinguishing the different species and varieties of Strophan- 
thus seeds in the powdered form. This drug is used in 
great emergencies, and some of the seeds of commerce 
are nearly or quite inert, while others are very powerful. 
Il. SPECIMENS OF WINTER Twics, BARKS AND DRawincs II- 
lustrating a Comparative Study of the Commercial Fea- 
tures of Viburnum Barks. Exhibited by Prof. Henry H. 
Rusby, M. D. (College of Pharmacy). 
This study was undertaken under the same auspices as 
the preceding, in order to determine characters for the iden- 
tification by collectors of the different species in the winter 
season, and also for identifying the barks in commerce, 
either entire or in powder. 
12. SPECIMENS OF PLANT AND Fruit, Microscopic PREPA- 
RATIONS AND DRaAwIncs, and Printed Report Illustrating 
a Study of the Anatomy of the Fruit of Serenoa serrulata 
(Saw-Palmetto). Exhibited by W. A. Bastedo, Ph. G. 
(College of Pharmacy). 
t 
