328 Annual Eej^ort of the Itoijal Veterinanj College. 
render the distinction of sex quite easy. The illustration Fig. 8 
shows a strongle larva (male) from an earthworm with the internal 
organs well developed. 
Dr. Cobbold observed that the larvaa which he endeavoured 
to cultivate wore killed by contact with cold water ; but recent 
experiments have not confirmed this observation. A large number 
of larvae, of various sizes from -J^ to of an inch iu length, have 
lived through frosty nights and days since the middle of Novem- 
ber, and more than once the water and earth in which they have 
been kept have been for many hours a block of ice ; neverthe- 
less, immediately that the ice was melted by exposure to the 
Fig. 8. 
Larva of m<de stronyle from an earl/i-ivorm, slwwiny tin bursa ivilli the 
spines at the tail end. 
warmth of a room in which a fire was kept, the young worms 
became exceedingly lively. 
The inquiry will be continued, and it may be usefully ex- 
tended in several directions, especially to certain ^jarts of the 
country in which, owing probably to the marshy character of the 
soil, the disease has a constant existence. 
A report on the lung-worm disease of calves and sheep will 
be laid before the Veterinary Committee of the Society as soon as 
the inquiry has been carried far enough to justify any conclusion. 
During the present session at the Royal Veterinary College 
special lectures on the subject of diseases of cattle, sheep, pigs, 
and dogs have been delivered to the advanced students by Prof. 
Crookshank of the Bacteriological Laboratory, King's College, 
Prof. Victor Horsley, of the Brown Institution, Dr. G. Fleming, 
C.B., Principal Veterinary Surgeon to the Forces, and Mr. 
