430 BOTANICAL GAZETTE | DECEMBER 
250 smutted stalks in 1250, or 20 per cent. These observations were 
made in order to compare the results with those obtained from the 
third field, where 140 stalks showed 38 to be smutted, or 27 per cent. 
This field was an experimental plat in which a number of crossed 
varieties were being self-pollinated. The tassels to be used for this 
purpose were enclosed in sacks, but the remainder were pulled out when 
young. At the time the pollinating was begun, several ears were 
beginning to silk. These were cut off with a corn knife. In some 
cases the entire ear was cut off; in others it was cut above the base. 
After a period the ears were allowed to grow as they appeared. In 
this last plat 117 stalks had ears upon them of which 10 had been 
cut. Of the ro cut ears 9 were smutted, or go per cent.; of the 107 
uncut ears 5 were smutted, or 4.7 per cent. The cut ears were growing 
at the time of mutilation. These observations serve to show that corn 
smut is greatly increased by mutilation which exposes the growing 
issue.— A. S. Hircucock, Manhattan, Kan. 
A BOTANICAL ART GALLERY 
Durinc the past season the University of Minnesota has taken steps 
to found a photographic exhibit of the vegetation of the state, and 
several hundred dollars have been expended for experimental work. 
The results are so far gratifying that the writer feels justified in giving 
the outlines of the plan for the benefit of other institutions that may 
care to develop similar exhibits. 
Considerable time was spent during the summer in securing nega- 
tives of vegetation. A photographer has been continuously employed, 
and about 300 8 X 10 negatives have been obtained. For the present 
the efforts have been limited to (a) plant portraits in their habitats and 
(2) ecologic groups. Many of these have been enlarged and framed. 
A commodious and well-lighted room has been chosen for the hang- 
ing, and at present twenty enlargements, 30 X 40, and several of smaller 
size, have been hung as the nucleus of the gallery. The pictures are 
numbered and framed in the ordinary manner, and promise to have 
much educational value, not only to undergraduates, but to the public . 
generally. 
I find that a picture 30 X 4ocan be produced, properly framed and 
hung, at a minimum expense of about $17. Higher prices are, how- 
ever, demanded for the best work in framing. It is important to 
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