The society has business and scientific meetings--the latter monthly--and these are very largely attended and of the most interesting character. New and remarkable subjects of zoology are exhibited, papers and communications on animal physiology and zoology are read, and animated discussions carried on. An abstract of the proceedings is regularly forwarded to the scientific journals and newspapers. The society also publishes a large variety of zoological matter, which is furnished to fellows at one-fourth less than the price to strangers. Every addition to the collection of the society has its picture taken upon its entrance, and very handsome colored plates of those which are rare or curious are inserted in these publications. The sales from this source realized last year over thirty-seven hundred dollars. In 1871 the income of the society was $123,101, of which $69,000 were from admissions to the Gardens, $9507 from Garden sales and rent of refreshment-rooms, $3750 from the society's publications, and $39,415 from dues of fellows and annual subscribers. The expenses for the same year were $106,840, the principal items being--salaries, wages and pensions, $21,790; cost and carriage of animals, $10,560; provisions, $20,430; menagerie expenses, $10,480; Garden expenses, $3465. The annual income has so much exceeded the expenses during the last ten years that the society has been able to devote over two hundred and thirty thousand dollars of such surplus to the permanent embellishment of its Gardens, and still retain some fifty thousand dollars as a reserve fund. In the collection of the society are 590 quadrupeds, 1227 birds and 255 reptiles--altogether 2072. The quantity and various kinds of food--the knowledge of the tastes and necessities of the animals--the temperature, ventilation, habitations and so on of such a large assortment of different species--necessitate the employment of trained and skillful servants and scientific officers. It has been seen that the provisions and menagerie expenses alone exceed $30,000, and it must be remembered that the most difficult part, the brain-work, the knowledge--without which the whole would be a failure--is furnished the society by its council entirely free. The collection of living animals is the finest in existence, and is daily increasing. Scattered everywhere are its corresponding members, keeping it advised of every opportunity to augment its stores: its agents have penetrated and are still exploring the desert and the jungle, braving the heats of the equator, and the terrible winters of the ice-bound regions of the globe, to furnish every possible link in the grand procession of organized life.