Diseases of Birds. 
285 
these birds always sleep, but they proved to be clear and were 
removed. 
Some weeks later, two more eggs were laid, but as serious 
incubation did not commence for fully a week after the appear- 
ance of the second egg, we never expected the eggs to come , to 
anything. About a month after this my man thought the eggs 
should be removed and the box cleaned ; his astonishment was 
great when, on lifting the lid, he discovered one bad egg and a 
young bird about one week old. 
The young Lory grew well, but remained in the nest 
for a very long lime, quite three months I think. The only 
difference between the young bird and the old ones is the few 
red feathers about the neck and ears, and the white skin round 
the eyes and above and below the beak. 
My ordinary food, consisting of sweetened milk and barley 
water made into sop with " B. C." food, was used all the time the 
young bird was in the nest ; which proves, I think, the suitability 
of this food for feeding Lories. 
The young aier is a strong, well-grown bird, and in the 
most perfect health. I think I can now distingui-sh the different 
sexes of these birds, the colouring of the eyes being slightly 
different. 
3)i5ca6e6 of Biit)5. 
By Henry Gray, M.R.C.V.S, 
{Continued Jtoni Vol. VII). 
1. 
Mange, Scabies, Scaly-leg or Scaly-beak. 
Mange is a term given to a class of contagious skin 
diseases of animals due to an acarus or mite. When it affects 
sheep it is denominated scab ; and people, itch. 
The mange-parasite causing tlie sarcoptic mange, affecting 
the legs or beak of tlie Fowl, Turkey, Guinea-fowl, Pheasant, 
Partridge, Gouldian Finch, Goldfinch, Bullfinch, Pintail Non- 
pareil, Parrot, Parrakeet, and other cage-birds is the Sarcoptes 
viutans. 
It is a microscopical mite, very much smaller than the 
cheese-mite, and has a rounded form, and in the female, when 
