l82 



but nevertheless all the forms are due to the satae 

 organism which varies in virulence, the course being 

 altered by such circumstances as changeable weather, 

 not settled dry cold or hot weather. 



The best way to prevent mortality from this 

 disease is by the adoption of measures of scrupulous 

 cleanliness and the disinfection of cages, etc., and the 

 removal of a bird as soon as anything is noticed 

 amiss, care being taken that it receives suitable 

 shelter. When the disease occurs in the chronic form 

 one may try Sulphuric Acid and Iron Sulphate in the 

 drinking water. Aviaries should be kept dry and well 

 sheltered. There is nothing much to be done in the 

 rapidly acute and acute forms. 



Birds recovered from the disease should be 

 isolated for some weeks, because although being well 

 themselves thev are still infectious to others. 



^be (3enu6 Spermopbila. 



By WESr^EY T. Page, F.Z.S. 

 (Continued from page 14SJ. 

 19. 6\ nigrorufa. 

 Adult male : Top of head and back to rump, black, 

 with the feathers of the mantle, back, and scapulars, 

 obscurely tipped with ruddy-buff; rump, ruddy-cinna- 

 mon ; wing and tail feathers black edged with whitish- 

 brown ; the bases of the middle primaries are white, 

 and the middle secondaries have their edges somewhat 

 hoary ; loral streak, white ; eye region, black ; sides of 

 neck, ear-coverts, cheeks and throat, huffish cinnamon, 

 lightest on the sides of the neck ; the under surface is 

 principally buffish-cinnamon, darker and brighter on 



