CO129-346 - Governor Sir Lugard - 1908 [1-3] — Page 382

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being so closely associated with man.No results of much value

have so far been obtained.

It had been the custom previously to et. 1907 to examine

all rats, caught orfound by the rat catchers, for plague by

stained smears of the heart blood ard spleen made by a cool

traired to open the rats and prepare the smears. However the

present Indian Planie Commission recently published a full

accounts of a retter method consisting chiefly of opening

up the sights of all the lymphatic glands to naked eve ins-

-pection. In Octobe" this more advanced method was substitu

-ted here and it gave me abundant opportunity of studying

the lesions of various rat diseases.

Leprosy. It is not infrequent to find on older rats patches

of skin which appear dry and scaly and a little thickened

ard from which the hair has fallen off.These are not unlike

the skin lesions of anaesthetic leprosy of man in appearance.

I have not found the leprosy bacillus in rats suffering from them

though further search will be made in the nerves. The condi-

-tion described is not the same as the well known disease

of rats associated with aci fast bacilli,

Tuberculosis. I have not found this disease in rats

in Hongkong. Rats have frequently heen found with the whole

of one lung or a single lobe completely replaced by a caseous

1388, Caseous lumps and small aheesses with thickered walls

have been found in the messertery ard cold (chronic) abcesses

with thickened walls have bean found elsewhere. These le ions