324 At the south side of the Agricultural Building is another. vast structure, devoted principally to a Live Stock and Agricultural Assembly Hall. This is the common meetiug-point for all persons inter- ested in live stock and agricultural pursuits. This building contains a fine lecture-room, with a seating capacity of about 1,500, in which lectures are delivered and conferences held on topics connected with live stock, agriculture, and allied industries. | The Forestry Building stands near the Agricul- tural Building, and is the most unique of all the Exhibition structures. Its ground area is 208 by 528 feet. On all four sides is a veranda, the roof of which is supported by a colonnade, each column of which consists of three tree-trunks, each 25 feet long. These trunks are in their natural state, with the bark undisturbed. They were contributed by the different States and -Territories of the’ Union, and by various foreign countries, - each furnishing specimens of its most characteristic trees. The walls of the building are covered with slabs of logs with the bark removed. The roof is thatched with bark. Within, the build- ing is finished in a great variety of woods, so treated as to show, to the best advantage, their graining, their colors, their susceptibility to polish, etc. It contains a wonderful exhibition of forest products in general, doubtless thé most complete ever seen in the world, including logs and sections of trees, worked lumber in the form of beams, planks, shin- gles, etc., dye-woods and barks, mosses, gums, resins, vegetable ivory, rattan, willow-ware, and wooden-ware generally, etc. There is also a large exhibit of saw-mill and wood-working machinery, including four complete saw-mills in an annex at- tached to the Forestry Building. Close by the Forestry Building is the Dairy Build- ing, which contains not only a complete exhibit of dairy products, but also a dairy school, in connec- tion with which are conducted a series of tests for determining the relative merits of different breeds of dairy cattle as producers of milk and butter. This structure stands near the lake shore and is 100 by 200 feet in area, and two stories high. On the first floor, besides office headquarters, there is alarge room devoted to exhibits of butter, and further back an operating room, in which a model dairy will _be conducted. On two sides of this room are seats for 400 spectators to witness the operations of the THE WORLD'S COLUMBIAN EXPOSITION, model dairy, Ina gallery about this rcom are the exhibits of cheese. dig The Horticultural Building stands immediately south of the entrance to Jackson Park from the Midway Plaisance, facing on the lagoon. Between it and the lagoon is a terrace devoted to out-door exhibits of flowers and plants, including large tanks for various liliesand other aquatic plants. The building is 998 feet long and 250 feet wide, con-~ sisting of a central pavilion with two end pavilions, each of the latter connected with the central one by front and rear curtains, forming two interior courts, each 88 by 270 feet. These courts are planted with ornamental shrubs and flowers. Over the central pavilion rises a glass dome 187 feet in diameter, and 113 feet high, under which are exhi- bited the tallest palms and tree ferns that can be GEN. THOMAS W. PALMER, PRESIDENT NATIONAL COMMISSION, WORLD'S COLUMBIAN EXPOSIT-ON, procured. This building is devoted to the exhi- bition of flowers, plants, vines, seeds, horticultural implements, and all allied objects and industries. The enormous mining industries of America, apart from those of the rest of the world, would call for much space for their proper accommodation. The Hall of Mines and Mining stands at the south- ern extremity of the western lagoon, and is 700 feet long by 350 wide. Its architecture is early Italian renaissance. Within it consists of a single story surrounded by galleries 60 feet wide. There is thus a huge interior space 630 feet long and 230 feet wide, with an extreme height of roo feet at the.centre and 4o feet at the sides, It is spanned bya steel canti- lever roof, abundantly lighted with glass.