924 The American Ni aturalist. [October, 
Locust Appearances of 1891.’ r. Bruner had just returned from 
the western states, where the locusts are unusually abundant this year. 
It is feared that, unless prompt action is taken to destroy the eggs now 
being laid, many localities will be laid waste next year. Newspape 
reports stated that railroad trains had been stopped by the locusts, and 
have implied that the locusts were so thick that the trains could not 
force their way through. The manner in which trains are stopped, 
however, has been by the crushing of a few hoppers upon the track, 
which so greased the rails as to stop the trains until sand was put upon 
‘the rails. In many of the localities infested local species have been 
found, although the migratory locust (M. spretus) was the most 
commonly distributed. Other species common are M. brevitatus, 
M. atlantis, and D. longipennis. 
Mr, C. L. Marlatt read three short papers from C. H. Tyler Town- 
send, of New Mexico, upon some observations made in that region. 
Prof. J. B. Smith followed with papers upon ‘‘ Notes on Blackberry 
Borers and Gall Makers,’’ and ‘‘ The Melon Borer, Me/ittia cucurbite.”’ 
Several points of interest were brought out. 
Prof. Geo. F. Atkinson presented two papers: ‘‘A Cotton Cut- 
_Worm,”’ and ‘‘ Note on a Nematode Leaf Disease.’ The case of the 
cut-worm upon the cotton was thought to be new. 
Dr. D. S. Kellicott read a paper on “ The Horn Fly in Ohio.” He 
spoke of the appearance of this insect in Ohio and New York, and the 
probability as to the damage in the future. 
Dr. . Riley presented a paper on ‘‘ Kerosene Combines with 
Prehn” The origin and use of the so-called pyrethrum-kerosene 
emulsion was given. Many trials of this emulsionfas proved it of but 
little value, and it does not merit the praise it has received. 
Howard Evarts Weed followed with a paper on the ‘‘ Work of the 
Season in Mississippi.’’ The results of many experiments made during 
the season were given. Hippodamia convergens had been found 
feeding upon the cabbage, showing it to be an injurious insect. Screw 
worms (Compsomyia macellaria) have been abundant in some parts of 
the state during the year. Cattle at the station are kept free from 
ticks by feeding sulphur and salt in equal parts by keeping it before 
the cattle a// the time. Cotton-leaf worms (Aletia) and boll worms 
(Heliothis) have so far appeared in but small numbers this season. 
The secretary read a letter from Miss Eleanor A. Ormerod, of Eng- 
land, giving the results of Paris green experiments in England. Miss 
ae Bruner followed with an interesting paper upon ‘‘ The 
M 

