INDEX. 461 



Page. 

 Charts and Maps of America, Lecture on — 



Causes of the loss of former maps . 98 



General interest of a chartographical collection 103 



Use of former maps for testing accuracy of new ones 107 



Instances of errors iu geography . 109 



Maps as historical documents . 110 



Use of old maps in boundary disputes 113 



Use of former maps in different practical questions 116 



Different classes of maps 119 



Choice and selection of maps 124 



Arrangement of a collection of maps 129 



Literary aid to he procured ._ 135 



Exterior arrangement _ 138 



Eeview of similar undertakings, by Ebeling, Hunt, &c 141 



Cisterns to be arched over, &c 89,86 



Cofi&n, Prof. J. H., Meteorological Reductions and Work on "Winds" 35 



Cohesion, Kemarks on 308 



Cooper, Dr. J. G., Explorations by — - 61 



Constants of Nature and Art. 289 



Corcoran & Eiggs, Tiansfer of funds from 89 



Directions for collecting, preserving, and transporting specimens of Natural His- 

 tory, by Prof. S. F. Baird 235 



General Remarks ._ 235 



Apparatus required 238 



Apparatus useful for travelling parties. 238 



Instruments, Preservative Materials, &c 240 



Skinning and Stuffing Birds 241 



Mammals 243 



Reptiles 244 



Fishes 245 



Preserving in Liquids, &c .... _ 246 



Vertebrata 247 



Invertebrata . . 248 



Embryos 249 



Nests and Eggs 249 



Skeletonizing 249 



Plants 250 



Minerals and Fossils 251 



Minute Microscopic Organisms 252 



Donors to the Library 38 



Downing Monument . 23 



Drainage of Smithsonian Building 84 



Economic Geology of Trinidad - 281 



Education, Report on, by Henry Barnard. 33 



Electricity, Report on, by Dr. J. Miiller 357 



Electricity of Machine-made Paper .- 357 



Schonbein's Electrical Paper ; . 358 



Electricity of Gutta Percha 358 



Electricity of Rubbed Glass 359 



