98 



illustrate fossil ])lants for the Involution Exhibit. These trans- 

 parencies are to he hung in the conservatories hack of the living- 

 plants so as to make the exhibits more instructive. 



Need of h'carraiigancjit. — In order to make the conservatories 

 more effective educationally, a rearrangement is desirable. Plans 

 lor this were instigated in December, in anticipation that they 

 may be put into effect in 1930. 



Lectures and Classes 



h\)llowing Dr. (h-aves's lectiu'e on water life, 1 gave two lectures 

 in March on " The Story of I'lant and Animal Iwolution." As- 

 sisted by Miss 1 Lester M. Rusk, I gave eight held lessons on 

 " Sjiring Flowers and Ferns " during May and June. 



International Seed Exchange 



DislribiitioJi of Cacliis Seeds 



Jn our International Seed Inxchange list for i(jj() were included 

 seeds of Cacti collected in tlie summer of hjjS iu Arizona. The 

 distribution of these seeds to foreign countries has attracted con- 

 siderable attention. Clip]iings concerning it have been received 

 from news])a])ers in New' Orleans, La. ( I'lenyiiiie) , Indianapolis, 

 Lid. (Stiir), Detroit, ALch. (Free Press). Independence, AIo. 

 (Ji.vaniiiier), Amarillo, Texas (Ne7vs), Mar(|uetle, Mich. (Joitr- 

 na!), Norwich, ("onn. (Bulletin), and I'aterson, N. J. (('all), 

 besides the Metropolitan ]iress. 



Summer Seed Collecting 



The largest foreign demand, very naturally, is for seeds of 

 native American plants. In order to meet this dem.-uid more 

 generously, collectors have been in the field during the i)ast summer 

 as follows (in addition to collections in the Botanic Garden) : 

 Air. J. P. Anderson, Alaska: Miss Le1le if. P>urr, Neziiouudland ; 

 Air. Lorentz Cantor, XeTC Jersey; Dr. C. Stuart Gager, Maine; 

 Dr. .Alfred Chuidersen, Catskill Mouutniiis; Students of Prof. 

 D. 1>. Swingle, Montana. 



