APPARATUS FOR TEACHING CHEMISTRY. 



1035 



Physiology No. 1, Illustration No. 5, 

 and book. 



Properties of Bodies, Illustration 

 No. 1, and book. 



Hydrostatics, Illustration No. 3, and 



handbook. 

 Physiology No. 2, Illustration No. 6, 



and book. 



Astronomy, sheet 2, Illustration 



No. 13, and book. 

 Astronomy, sheet 3, Illustration 



No. 14, and book. 

 Mechanical Powers, Illustration 



No. 2, and book. 

 Hydraulics, Illustration No. 4, and 



book. 

 Case's Map of the United States. 



4O92e. Educational Collection. 



M. Bert he lot, Paris. 



Calorimeter for thermo-chemistry, 



with agitator. 

 Electric motor for same. 

 Glass beaker with lip. 

 Porcelain dish for quicksilver. 

 Glass apparatus with spiral tube. 

 Bottle of alcohol. 

 Two flasks containing fluid. 

 Large glass apparatus. 

 Two bent glass electric tubes. 

 Glass apparatus with spiral tube at 



top. 



Test tube. 



Large bent glass tube containing 



mercury. 



Five tubes containing chemicals. 

 Glass tube or vacuum glass. 

 Bent glass tube with wire cloth cup 



at one end. 

 Small stoppered bottle of formiate 



of lead. 

 Thermometer with scale on iron 



stand with brass base. 

 Two glass jars. 



APPARATUS FOR TEACHING CHEMISTRY. 



4093. Working Bench for a Chemical Laboratory, for the 



use of science classes (according to Dr. R. Arendt). 



Franz Hugershoff, Leipzig. 



4094. Hofmann's Electrolytic Apparatus. 



Ch. F. Geissler $ Son, Berlin. 



4095. Hofmann's Apparatus for liquefying sulphurous an- 

 hydride. Ch. F. Geissler $ Son, Berlin. 



4096. Geissler's Apparatus for determining the greatest 

 density of water. Ch. F. Geissler $ Son, Berlin. 



4097. Hofmann's Electrolytic Apparatus for decomposing 

 hydrochloric acid. Julius Schober, Berlin. 



4098. Hofmann's Apparatus for showing that in the Syn- 

 thesis of Ammonia Gas three volumes of hydrogen unite 

 with one volume of nitrogen, to form two volumes of ammonia 

 gas. Julius Schober, Berlin. 



4099. Hofmann's Apparatus for showing that in the Syn- 

 thesis of Water two volumes of hydrogen unite with one 

 volume of oxygen, to form two volumes of water, gas, or steam. 



Julius Schober, Berlin. 



