THE HOP PLANT-LOUSE. 45 
small specimens, evidently not many hours old, and on every leaf I ob- 
served the process of bringing forth living young. None of the winged 
insects were so engaged. These were more active and less patient of 
observation, nor did I observe that any pup or those forms with but 
rudimentary wings brought forth young. 
p. m.—In Mr. Risley’s yard lice less abundant than elsewhere. On 
the whole, Mr. Risley’s yard and the yards in the immediate vicinity are 
much less bothered with the lice than any other yards I have seen. 
Nothing particular to note except the small number of winged speci- 
mens and the entire absence of pup. 
September 8.—Rain ; temperature warm ; lice are not active, and repro- 
duction does not seem to be going on, but [I spent only a short time 
‘‘between drops” in the yards. 
September 9. Sunday; rain all day; temperature high; evening closed 
in warm and muggy. 
September 10.—Went to Oriskany Falls, Sangerfield Center, and the 
Hannover farm during the day. Lice in all yards more abundant than 
ever. The vines are one mass of the beasts. Merely walking under 
them I became covered. On the stems, leaf-stalks, and especially at 
the joints, there were three, and even four, layers of the insects, while 
on the ground, globular masses, 4 to 6 inches in diameter, were every- 
where seen where the vines had been pulled and hops picked; every- 
thing is covered with lice, and everywhere they show that same tend- 
ency to bunch themselves. 
September 11.—At Cooperstown, called on Mr. J. F. Clark and saw 
his yard. Nothing noteworthy in his yard. Inthe yards between Rich- 
field Spa and Cooperstown picking is about over, and here many have 
finished picking and all are nearly done. Mr. Clark says that this 
spring, when grubbing—about the middle of March—one of his men 
turned up with the grubbing hook a mass of living lice; the mass was 
globular and as big asa fist. The man, whom I questioned closely, 
says they were about 6 inches or more underground, near to, but not on, 
the roots; he called the attention of his fellow-workmen to them and 
they broke up the mass to make certain they were really lice, and he 
is positive that they were identical with the lice now in the yards. 
Cannot say whether any of them were winged. Mr. Clark, also, has 
noticed the lice on the vines when they were still very low. 
September 12.—Spent part of dayin Mr. Clark’s yard and with him grub- 
bing up hills where picking had been over for some time. Everywhere 
in the ground we found lice—rarely singly, but in small masses, from 
three to ten, or more. In recently-picked spots they were numerous 
and close to the surface; in older spots they were more searce and 
much deeper down; one mass of eight was found at least 10 inches 
below ground. Afterward I examined the spaces upon which the vines 
from which the hops had been picked were piled ; where the vines were 
