PHYSICAL APPARATUS. 



1009 



4000bl. Astatic Galvanometer. 



4000bm. DanieU's CeU. 



4OOObn. Wheatstone's Bridge. 



4OOObo. Rheocord and set of Resistance Coils. 



4OOObp. Electric Bell. 



40OObq. Quadrant Electrometer. 



4OOObr. Thermopile. 



400Obs. Water Decomposition Apparatus. 



MAGNETISM. 



4000bt. Two-bar Magnets and Keepers. 

 4000bu. Magnetized Needle. 



4001. Collection of Models and Apparatus for teaching 

 Physics, Sound, Light, Heat, Electricity, and Chemistry. 



Matthew Jackson. 



Tate's air pump. 



Magdeburg hemispheres. 



Glass globe for weighing air. 



Gay-Lussac's apparatus for vapour 

 densities. 



Dumas' apparatus for vapour den- 

 sities. 



Electrical alarum. 



Savart's toothed wheel apparatus. 



Syren. 



Tuning forks. 



Hopkins' fork tube. 



Glass reflectors on stands. 



Set of lenses and half lenses, with 

 holder on card. 



Fergusson's pyrometer. 



Gravesand's ring and ball. 



Sir H. Davy's apparatus. 



Thermopile. 



Cylinder machine. 



Plate machine. 



Bertsch machine. 



Holtz machine. 



Winter's machine. 



Volta's condensing electroscope. 



Aurora apparatus. 



Bichromate battery. 



40075. 



Zinc plates for Bunsen's battery. 



Tangent galvanometer. 



Set (11) of Hofmann's tubes with 



stands (1, with 2 stands) and 1 



span stand. 



Winkler's gas apparatus. 

 Imp. sulph. hydrogen apparatus. 



3 articles. 



Ammonia apparatus. 

 Collection of small instruments (18) 



on cardboard. 

 Organic analysis apparatus. 30 



pieces. 



Desiccators. Different patterns. 

 Distilling apparatus for carbon 



bisulph. (4 articles.) 

 Assortment of 12 test glasses. 

 Distilling apparatus. (4 pieces.) 

 Set of 7 1 graduated and other glass 



instruments. 

 Carbonic acid apparatus. 7 portions 



in card boxes. 



Arrangement of gas burners. 

 Bunsen's water bath and stand. 

 Sulph. hydrogen apparatus. 

 Cleaning brushes. 



as 



