dea age ae, Sea S wie Sa TE weg 
Tbs. Sooo 
1892. ] Open Letters. 425 
Minor notices. 
THE SECOND BULLETIN of the U.S. Division of Vegetable Pathology 
is devoted to a detailed preliminary report upon the California vine 
disease, which appeared in sufficient amount to attract attention in 1884 
and 1885. Since then its spread has been rapid until 20,000 to 25,000 
acres of vineyards in S. California have been devastated. The cause 
of the disease has not yet been discovered. ‘This report gives an ac- 
count of the incubation and spread of the disease; its characteristics 
and its relation to various supposed causes. It seems most nearly re- 
ated to rougeot and folletage. 
ProFeEssor L. H. PamMeE has distributed copies of an elaborately 
illustrated lecture on the “Pollination of Flowers’’® delivered at the 
January meeting of the Iowa Horticultural Society. The collation of 
useful illustrations (though these are wretchedly printed) and the 
most important literature bearing on this subject makes the pamphlet 
a very useful one to teachers. Two other short papers, “Cross and 
self-fertilization in plants” and “The effects of cross-fertilization in 
plants” are also included in the pamphlet. 
OPEN LETTERS. 
The Botanical Congress. 
Since opinions are asked regarding an American eee Poe 
«sy at Madison next year, I give mine briefly and categorically as tol- 
Ows: ; 
t. By all means we must have acongress. Foreign tap geri ae 
ve wit it, the time is ripe for it, and properly arranged, I believe t 
Hon | : : 
An his action by too much a priori machinery. He must be give 
ly. 
3. Action should be taken at once to secure a meeting of the Inter- 
onnec- 
tion with next year’s congress. : ee 
ini ics of general interest to DO 
containing a few top! gi deat vate Pager” 
_ Of which may well be discussed in such a presence. 
> aaa 
° . chart 2. 
*Washington: Gov. Printing Office: 1892. 8°. pp. 222. pl. xxv. cha 
_ *Apparently privately printed. pp. 57. figs 45. 
