IOWA ACADEMY OF SCIENCE 157 



classifications have been made, under one or the other of which objects 

 conveniently fall. 



The first and greatest of these divisions is a state's natural history, 

 which is first divided into the three great groups known as the mineral, 

 vegetable and animal kingdoms, each of which is again many times 

 subdivided. Civil history is co-ordinate with ethnology, and subordi- 

 nate to natural history, because upon the former the latter depends 

 for its existence. 



We have determined that within our province herein outlined we 

 liavf the following approximate figures with which to deal : 



NATURAL HISTORY. 



MINERAL KINGDOM. 



Hall of Geology — Stratified rocks; building and other commercial stones; 

 minerals; clays; sands and soils. These will require six cases affording 300 

 square feet of exhibition surface, in a room of 900 square feet. 



Hall of Palaeontology— Fossil remains of the vegetagle and animal kingdom; 

 700 species, 4,200 specimens, requiring sixteen cases of 800 square feet, and a 

 room of 2,400 square feet. 



VEGKTABLE KIXGOOM. 



Hall of Botany — Fungi; poisonous and medicinal plants: commercial woods 

 and a complete flora, 3,000 species, requiring thirty-two cases of ninety-six draw- 

 ers each, using a floor space of 1,600 square feet in a room of 4,800 square feet. 



ANIJIAL KINGDOM. 



Hall of Invertehrates — Mollusca; butterflies; moths; beetles, etc., 900 species, 

 requiring two table cases, and six case of drawers of 400 square feet, occupying 

 a room of 1,200 square feet. 



Lover Vertebrates — Reptiles and batrachians; fishes, etc., 108 species, re- 

 quiring nine table cases of 450 square feet, in a room of 1.350 square feet. 



Arcs. Hall of Birds — 354 species, requiring thirty-six cases of 1,900 square 

 feet, in a room of 5,700 square feet. 



Mammal Hall — 78 species, requiring twenty cases of 1,000 square feet, in a 

 room of 3,000 square feet. 



NATURAL RESOI-RCES. 



Hall of Resources — Mineral, vegetable, and animal resources, and the manu- 

 factured products therefrom, requires thirteen cases of 700 square feet, in a 

 room of 2,100 square feet. 



CIVIL HISTORY. 



ETHNOLOGY. 



Hall of Archaeology — Prehistoric tribes. In this we have about 15,000 speci- 

 mens, requiring thirty table cases of 1,500 square feet, and a room of 4,500 

 square feet. Recent aboriginal tribes will require eight cases of 400 square 

 feet in an annex of 1,200 square feet. 



