HON. AND REV. W. HERBERT'S FOOD FOR SOFT-BILLED BIRDS.--Milk, which Mr. Sweet recommends, I have found very fatal to many of the soft-billed birds, and I never give it; but the blackcaps do not seem to suffer from it. They are very fond of a boiled carrot mashed and moistened, or beet-root boiled and mashed. A boiled carrot will keep fresh many days, in a basin of cold water, and is an excellent substitute for fruit in feeding them. Boiled cabbage, cauliflower, green peas are good for them; all sorts of puddings; a very little roast meat minced, I give them every day, and a little yolk of egg when it suits, but it is not necessary. The standard food is hemp-seed ground in a coffee-mill, and bread crumbs scalded and mashed up together, and fresh every day. They are very fond of ripe pears and elderberries (but elderberries stain the cage very much), currants, cherries, honeysuckle, and privet-berries. Professor Rennie says, "I have more than once given the blackcap and other birds a little milk by way of medicine when they appeared drooping or sickly, and with manifest advantage[10]." BREEDING OF TAME BIRDS. House birds, being most of them reared like canaries, can only be made pair with great difficulty. When this object is accomplished, all of them require a large quiet place, a whole room if it can be had, in which branches of pine should be put,--a place, in fact, as much as possible resembling their natural abodes. But should you succeed in this respect, as you can never procure the materials which form the general base of their nests, it is better to give them artificial ones, made of the bark of the osier, straw, or even turnings of wood, in which it is only to put the soft stuff for lining, such as wool, the ravelings of silk, linen, or cotton, and the birds will take possession of it. It is of consequence that the food for paired birds, and for the different ages of their young ones, should be chosen with judgment. I shall mention what must be done in this respect, in the articles relating to the different species of birds which I am going to describe in this work. I must not omit two interesting observations which were communicated to me by a lady of my acquaintance. It sometimes happens, during a dry season, that the young birds are not hatched on the proper day, or are in danger of not being hatched at all; if, in this case they are plunged for one minute in water about their own warmth, and then replaced under the bird, the effect will be as quick as it is successful[11].