4 botanical gazette. [January, 



his labor from similar material, and it is well worth the while 

 of the student to learn how it is done. 



The botany of the first term of the second year is histo- 

 logical and physiological. For this class a special labora- 

 tory is provided, adjoining the room where the general work 

 of the second year is done. Plate III shows, unfortunately, 

 but a corner of the physiological laboratory. Here one finds 

 abundance of aquaria, large and small, the usual supply of 

 tubing, test-tubes, air-pumps, etc. In fact, the desire is to 

 furnish whatever is needed for working out the usual prob- 

 lems of this stage of botanical study. Prof. Wilson has ar- 

 ranged a very satisfactory course of practical instruction in 

 this direction. 



The physiological laboratory communicates also with the 

 greenhouse (Plate IV), in which abundance of fresh material 

 is found. 



The second term of the second year brings the student to 

 Prof. Rothrock for some of the practical aspects of botany. 

 He may decide for himself what direction his study shall 

 take. Most of the students prefer medical botany, as it is 

 directly in the line of the profession into which the" vast ma- 

 jority of them ultimately go. Or the opportunity is given for 

 close study of different kinds of work, or the'student may 

 prefer general economic botany. 



There are beside special rooms provided for these ad- 

 vanced students who are capable of doing original work. 



Miss Emily L. Gregory, who is so well known to the read- 

 ers of the Gazette, is now engaged in pursuing her investi- 

 gations in this building. Plate V shows one of these labor- 

 atories for special workers. 



In the building there is a very complete local herbarium, 

 the gift of Mr. Isaac Burk. The herbarium owned bv Prof. 

 Rothrock is here and available for purposes of study. " It has 

 a value from the large number of the type specimens of our 

 western species which it contains. * ' "" " 



em 



sets of the collections made by the earlier government ex- 

 plorations west of the Mississippi. Also those of Bolander, 

 Parry, Hall and Harbour, Lemmon, Palmer, Rothrock and 

 Pnngle. The small illustration heading this article shows a 

 corner in the herbarium. 



. ^ h ^? t . ude r nt also has access, under proper restrictions, to 

 the facilities for study offered by the Philadelphia Academy 

 of Natural Sciences. The library and herbarium of that 

 institution are among the most valuable in the country. 



I he botanical garden is now fairly started, and already 



