1038 SEC. 19. EDUCATIONAL APPLIANCES. 



2618. Buusen Burners (two), of simple construction. 



Warmbrunn, Quilitz, Sf Co., Berlin. 



2619. Bunsen Burners, with star, chimney, and reduction- 

 cone. Warmbrunn, Quilitz, 3? Co., Berlin. 



2620. Gas Lamps (two), with arrangement for the simulta- 

 neous regulation of gas and air, of simple construction. 



Warmbrunn, Quilitz, 4* Co., Berlin. 



2621. Gas Lamps, with star, chimney, and reduction-cone. 



Warmbrunn, Quilitz, fy Co., Berlin. 



2622. Two-burner Bunsen Lamp. 



Warmbrunn, Quilitz, S? Co., Berlin. 



2623. Three-burner Bunsen Lamp, with arrangement for. 

 the simultaneous adjustment of air and gas. 



Warmbrunn, Quilitz, fy Co., Berlin. 



2624. Five-burner Bunsen Lamp, of similar construction. 



W-arn&runn, Quilitz, S? Co., Berlin. 



2625. Six-burner Bunsen Lamp. 



Warmbrunn, Quilitz, 8? Co., Berlin. 



2626. Warmbrunn, Quilitz, and Co.'s Universal Bur- 

 ner, of newest construction, complete. 



Warmbrunn, Quilitz, 3? Co., Berlin. 



A description of this burner by R. Muncke, will be found in Ber. d. Deutsch- 

 chem. Ges. 1874, p. 284; in Dingl. Polyt. Journ., vol. 212, p. 141 ; and in 

 Fres. Zeitsch. f. anal. Chem., XIII., p. 46. 



2627. Warmbrunn, Quilitz, and Co.'s Combustion 

 Furnace, with a four-burner gas lamp, complete. 



Warmbrunn, Quilitz, 8? Co., Berlin. 



For a description of this furnace by E. Muncke, refer to Dingler's Polyt. 

 Journ., vol. 212, p. 315, and to Fres. Zeitschr. f. anal. Chem., XIII., p. 167. 



2628. Warmbrunn, Quilitz, and Co.'s Combustion 

 Furnace, with 12 burners, each provided with simultaneous regu- 

 lation for gas and air, complete. 



Warmbrunn, Quilitz, Sf Co., Berlin. 



2629. Gas-washing Apparatus (conip. B. Muncke, Fres. 

 Zeitsch. f. anal. Chem. XV., Part I.) Three different sizes. 



Warmbrunn, Quilitz, $ Co., Berlin. 



2630. Hydrofluoric Acid Apparatus, consisting of retort, 

 still-head, and U tube, for condensing the acid. 



Warmbrunn, Quilitz, 3? Co., Berlin. 



