Thomas Richard Willats. 67 



CHEMICAL APPARATUS. 



Alembics, Argand Oil and Spirit Lamps, Blowpipes of various con- 

 structions, Bell Jars, Crucibles, Specific Gravity Bottles, Evaporating 

 Dishes, Flasks, Furnaces, Glass Tubing and Rod, Hydrogen Lamps, 

 Agate, Glass, Composition, and Iron Mortars, Graduated Measure 

 Glasses, Pneumatic Troughs, Stills of every description, Gas Holders, 

 Retorts and Receivers, Retort Stands, Reflectors, Test .Glasses and 

 Tubes, Test Papers, etc. etc. 



CHEMICAL TESTS AND RE-AGENTS OF EVERY DESCRIPTION 

 PERFECTLY PURE. 



PNEUMATIC APPARATUS. 



Single and Double Barrelled Air Pomps, Exhansting and Conden- 

 sing Syringes, Single and Double Transferee, Open and Close 

 Receivers, etc. etc. 



MEDICAL GALVANISM AND ELECTRICITY. 



T. & R. WILLATS respectfully solicit the attention of the Medical 

 Profession to their ELECTRO-MAGNETIC MACHINES, combining Com- 

 pactness, Portability, and Power, as constructed by them for St. 

 Thomas's, Guy'>, and the principal Metropolitan and Provincial 

 Hospitals, for the application of Medical Electricity. 



Complete in Case, with Battery and Directions, 3. 3s. 

 FRICTIONAL ELECTRIC MACHINES, 



OF EVERY FORM AND DIMENSION. 



SMEE'S, DANIELL'S, GROVES,' AND CRUICKSHANK'S 

 BATTERIES. 



