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To FEED MOSQUITOES ON BIRDS, ETC. 



1. Prepare a framework of wood and cover two 

 sides with, cardboard and two with netting. Cover 

 one end with netting drawn tight, and to the other 

 attach a ' sleeve ' of netting. Catch or breed out a 

 number of Culex (e.g., Culex fatigans), and place in the 

 frame. Keep the frame in a dark place, and place a 

 saucer of water in it. 



Before placing the bird in the cage, a small bag 

 of netting should be tied around its head, as it then 

 remains perfectly quiet, and further, the legs may be 

 fastened. Small birds, such as sparrows, should be 

 carefully treated, as, otherwise, they are very liable 

 to succumb. Pigeons should be treated in the same 

 way, if necessary. 



2. Mosquitoes may be fed singly on pigeons 

 and other large birds by placing the end of the test 

 tube, in which the mosquito is confined, against an 

 area of skin free from feathers, e.g., under the wing. 



FEEDING EXPERIMENTS ON BIRDS 



1. Feed a number of Culex, e.g., C. fatigans, on 

 sparrows (in which have been detected Proteosoma in 

 the blood), by placing these for a time in the mosquito 

 cage. ; < 



After feeding for one or two days, place those 

 mosquitoes, which have fed and are gorged with blood, 

 in a prepared jar, and keep until ready for dissection. 



Note the zygotes of Proteosoma which generally 

 occur in large numbers in the stomach wall, and in 

 which very coarse and dark pigment is seen. 



2. Feed some Anophelines on Proteosoma spar- 

 rows, and note that no zygotes are formed. 



