13] Proceedings of Section G, A. A. A. S. 339 
MONDAY AFTERNOON, AUGUST 21. 
19. ERWINF. SMITH: 7wo new and destructive diseases 
of cucurbits.—The first disease was observed in melons in 
Michigan, and is produced by a parasitic Alternaria, which 
Was separated and cultivated upon agar-agar. Artificial in- 
lection was obtained by sowing the spores from the pure cul- 
tues. It produces large brown spots on the foliage, and has 
- been called “rust,” Although very destructive to melons, it 
does not appear to affect cucumbers. The second disease at- 
_ tacks cantalou 
eee extending into the stem. It is produced by 
eria, whi : : 
: ‘pread of the blight is associated with the puncture or eating 
othe plant by j ; 
MACMILLAN: Preliminary statement concern- 
ratortes and instruction in American untver- 
-—Circulars were sent to all American uni- 
Which information had been obtained, showing 
nequality in the presentation of botany. It 
€ united herbaria of the country represented 
°N specimens, and the united botanical li- 
cal activity. 
+ . of the discussion which followed, partici- 
“sss. Bessey, Barnes, Underwood, Keller- 
