PHYSICAL SCIENCE. 85o 



4070. Illustrated Geographical Atlas, by Liniberg. 



4071. School Atlas, as projected by Colonel Ponlikoffsky. 



4072. Geographical Wall-maps, of Ilyin, Rothstein, She- 

 veleff; Lebedeff, Zooeff, and Michailoif. 



4073. Elementary Course of Geography. Systematically 

 arranged in drawings, plans, and maps, prepared by Lapehenko 

 and Michailoff. 



4074. Apparatus for teaching the Blind. Collections of 

 plans, maps, manuals, and models for teaching geography to the 

 blind. Prepared and edited by General Grigorieff, director of the 

 Institution for Blind Children in St. Petersburg. 



4075. Manuals on all branches of Geography, adopted in the 

 Military Schools of Russia ; published by Fenoult. 



4076. Wall Charts, according to KotelnikofFs text book. 



4077. Atlas, by Petchorin. 



4078. Map of the Heavens (WhitalPs planispheres altered), 

 by Ilyin. 



4079. Apparatus for explaining the seasons (formation of the 

 ecliptic), by Kachoffsky. 



4080. Apparatus for explaining the phases of the moon, by 

 Kachoffsky. 



4081. Armillary Sphere, by Jenkin. 



4082. Armillary Sphere, by Koualsky. 



4083. Hemisphere by Koualsky. 



MODELS AND OTHER APPLIANCES FOR TEACHING MINERALOGY 

 AND CRYSTALLOGRAPHY. 



4084. Class Collection of Minerals, with apparatus for 

 their investigation (Heard's system), prepared by Latkin. 



4085. Glass Crystals, with axes, illustrative of crystallo- 

 graphy, prepared by Skibinevsky. 



4086. Glass Crystals, intermediate forms, illustrative of 

 crystallography, prepared by Skibinevsky. 



4087. Crystals of - Tin (specimens), prepared by Colonel Von- 

 der-Weld. 



4088. Models of Crystals in Wood, illustrative of crystallo- 

 graphy, prepared by Stroukoff. 



