Wherever the pigeon accommodations are designed to be, a close partition should separate their quarters from the room occupied for other purposes, with doors for admission to those who have to do with them, in cleaning their premises, or to take the birds, when needed. A line of holes, five inches high, and four inches wide--the top of the hole slightly arched--should be made, say 18 inches apart, for the distance of room they are to occupy in the building. A foot above the top of these, another line may be made; and so on, tiering them up to the height intended to devote to them. A line of shelves, or lighting-boards, six to eight inches wide, should then be placed one inch below the bottom of these holes, and firmly braced beneath, and nailed to the weather-boarding of the house. Inside, a range of box should be made, of corresponding length with the line of holes, to embrace every entrance from the outside, 18 inches wide, and partitioned equidistant between each entrance, so as to give a square box of 18 inches to each pair of birds. The bottom board of each ascending tier of boxes will, of course, be the top of the boxes below, and these must be made _perfectly tight_, to prevent the offal of the upper ones from falling through, to the annoyance of their neighbors below. The back of these boxes should have a line of swing doors, hung with butts, or hinges, from the top, and fastened with buttons, or hooks, at the bottom, to allow admission, or examination, at any time, to those who have the care of them. This plan of door is indispensable, to clean them out--which should be done as often as once a week, or fortnight, at farthest--and to secure the birds as they may be wanted for the table, or other purposes--for it will be recollected that squabs, just feathered out, are considered a delicious dish, at the most sumptuous tables. It will be understood, that these boxes above described, are within a partitioned room, with a floor, in their rear, with sufficient space for the person in charge of them to pass along, and to hold the baskets, or whatever is to receive the offal of their boxes, as it is taken out. This offal is valuable, as a highly stimulating manure, and is sought for by the morocco tanners, at a high price--frequently at twenty-five cents a bushel. As pigeons are prolific breeders, laying and hatching six or seven times a year, and in warm climates oftener, they require a good supply of litter--short cut, soft straw is the best--which should be freely supplied at every new incubation, and the old litter removed. The boxes, too, should be in a warm place, snugly made, and well sheltered from the wind and driving storms; for pigeons, although hardy birds when grown, should be well protected while young.