REPORT OF THE ENTOMOLOGIST. 115 
The Field Force Pump Hie ae of Lockport, N. Y., have also 
jaced on sale a spraying outfit, consisting of a strong’ force-pump, 
8 feet of discharge hose, spraying nozzle, couplings, and suction pipe, 
all ready to mount on a barrel. The price of this outfit is $10. They 
also have a spraying apparatus operated by horse-power. ; 
DILK C eek. oa nae THE YEARS OPERA- 
MADE TO THE ENTOMOLOGIST. 
By PuHiItirp WALKER, Agent in charge. 
Plates VII and VIII. 
DISTRIBUTION OF SiILK-WORM EGGS. 
The policy of the Department, set forth in the last annual report, 
to distribute only eggs of'the large Milanese varieties, has been fol- 
lowed during the past year, and a supply of eggs of the same races 
has already been purchased for distribution the coming season. 
These eggs have, in general, given excellent results, many persons 
having produced at the rate of 120 pounds of fresh cocoons for each 
ounce of eggs put in incubation. The distribution of last year 
amounted to about 150 ounces of eggs, sent to about 360 applicants, 
inhabiting almost every State east of the Rocky Mountains. These 
eggs were distributed in quantities varying from one-quarter of an 
ounce to one ounce. A suitable hibernating box was constructed at 
the Department some two years ago, and in it we have been enabled 
to keep eggs up to the moment that silk-raisers were ready to begin 
the rearing, at which period the distributions usually take place. 
With the Commissioner’s authority and under your instructions I 
have visited the silk-fields of Kurope during the summer, and among 
other establishments inspected the egg-producing stations of Signor 
Susani, in Italy, and M. Deydier, in France. A description of these 
institutions and their methods of work will prove of interest to silk- 
rowers. The eggs from M. Deydier’s establishment have been 
argely used in the United States and have given universal satisfac- 
tion, 
EUROPEAN EGG-PRODUCERS 
After Pasteur made his discoveries, which resulted in the estab- 
lishment of his system of microscopical selection in the production 
of Silk-worm eggs, Signor Susani, of Milan, was one of the first to 
put the process into operation on a commercial scale. He now has 
_ the largest establishment of this sort in the world, employing 3,000 
hands during the coupling season and 750 for microscopical examina- 
tion. His place is situated at Albiate, about 10 miles northeast of 
Milan, and is called the Cascina Pasteur. The building is about 100 
feet wide by 120 feet long, the center of the ground floor being occu- 
pied by the hibernating room, which is so well described by Maillot* 
that his account of it is reproduced here: ; 
This room is 20 meters long by 5 wide and 4 high; its walls are double, the exterior 
one being 70 centimeters and the interior one 15 centimeters thick; the floor is 
i Lecons Sur le Ver & Soié du Murier, p: 80: 
