428 REPORT OF NATIONAL MUSKUM, l!t()3. 



Botaiitaii depariiiit'ut. There wa.s obtainetl from the \\'()rlcr,s Fair, 

 l)oautifully installed both in g-eographic sequence and in a nionogi'aphic 

 manner, an unusually extensive collection of woods, t'oi'est prod- 

 ucts, such as fruits, resins and the like, tibers, and other economical 

 plant Droducts, in a profusion that is, perhaps, without a parallel. 

 Especial attention is given to products having a domestic and practical 

 value, such as cotton, tobacco, hemp, grains, tea, coffee, spices, dye- 

 stuffs, etc. Forestry is illustrated by monographic exhibits. From 

 one and the same tree there are shown blocks, leaf-bearing branches, 

 and flowers; photographs of the species at various ages; pieces of its 

 bark, cross sections of the stem, planks in various stages of working up 

 to a polished condition; besides a colored chart of the geographic distri- 

 l)ution of the species, statistical data concerning its weight, hardness, 

 density, and heating value, so that any one, from his own standpoint, 

 may ol)tain information and instruction. In this way "" Latin "" Amer- 

 ica is especially well represented, and there are economical botanical 

 products from Russia, Japan, Korea, Ceylon, British India, Johore, 

 North America, Mexico, Guatemala, Jamaica, British Guiana, Venezuela, 

 Colombia, Ecuador, Brazil, Paraguay, and the Argentine Republic. 

 Recently there has been installed a complete collection of the timber 

 trees of North America. The herbarium contained, in October, liHK), 

 about 80,000 plants, and is, like the whole vast department, especially 

 well organized. Particular attention is paid to American plants, and 

 the collection is rich in North American and West Indian species. 



Geological department. — The collections are arranged in two series — 

 one systematic, the other economic. The systematic is divided, as is 

 usual, into paleontological, mineralogical, lithological, structural and 

 dynamical sections. The paleontological section is chronologically, and 

 within each period zoologically arranged. Much attention is given to the 

 collecting of fossil vertebrates of the w^estern United States, a region 

 specially rich in this regard. I will name, as an example, the material 

 obtained in South Dakota in 1898 relating to Titanotlierlum ingenx 

 Marsh, a mammal resembling a rhinoceros and nearly 1(5 feet long, and 

 the extensive material collected in 1899 in Wyoming relating to land 

 reptiles (dinosaurs) known ^'& Brontosaurns, Oreosaiirus., Oampto,s-a>/n(s\ 

 Morosaiiru.s., etc. , the last named having a fenmr over 5 feet long.^' The 

 mineralogical section is arranged according to Dana. In the section 

 of structural and dynamical geology there are shown, among other 

 things, cave products (stalactites, stalagmites, and the like), in a 

 great cave naturall}' arranged. The economic series illustrates the 

 occurrence of minerals and ores which have economic importance, 

 the processes by which they are extracted, and their application in the 



" Recently there have come to the Cohinibian IMusenin dinosaur remains of yet 

 lartfer animals, among which is a femur over 6 feet 6 inches in length. (See E. S. 

 Riggs, in Science, Ajjril 5, 1901, p. 549.) 



