MISCELLANEOUS. 1059 



4472. a. Drying Closet, according to Fresenius, of copper, 

 with two tubes and thermometer. 



4473. b. Drying Closet, according to Fresenius, of copper, 

 with grate, wire net, thermometer, and chloride of calcium tube, 

 for drying pulverised substances. 



4474. c. Drying Closet, according to Rarnruelsberg, with 

 two tubes and thermometer. 



4475. d. Drying Closet, according to Rose, with double 

 sides, two tubes, and thermometer. 



4476. Drying Disc, according to Fresenius, for agricultural 

 chemical purposes, with thermometer. 



4477. One Burner to the same. 



4478. Burner, Blast, and Lamp. 



4479. a. Aeolipile, of brass plate. 



This has a vertical flame for soldering, bending glass, melting, by means of 

 the flame of alcoholic vapour. 



They are likewise constructed with horizontal flame of embossed brass or 

 copper with safety-valve, on a stand with lamp. 



4480. b. Berzelius' Lamp, on porcelain plate. 



Berzelius lamp on a brass stand on a porcelain plate, consisting of the lamp 

 with spirit reservoir, two rings, and chimney. 



4481. c. Lamp, according to Mitscherlich. 



The spirit reservoir of this lamp is separated from the burner by a pipe 

 230 millimeters in length, and consists of a bottle provided with a conical valve> 

 which is inserted in a reverse way in a brass cylinder, by which means a 

 constant level of the spirit in the lamp has been secured. 



4482. d. Simple Burner, with glass tube. 



4483. c. Bunsen's Jet Burner, uni-radiating, with case for 

 illuminating flame. 



4484. /. Bunsen's Burner, with chimney, and fork-shaped 

 holder. 



4485. g. Bunsen's Burner, with star-ring, chimney, and 

 blow-pipe apparatus. 



4486. h. Finkner's Burner, with gas and air regulator. 



4487. i. Pinkner's Burner, with star-ring and chimney./' 



4488. /'. Griffin's Burner. 



4489. I. Burner, -according to the Viennese model. 



4490. m. Double-radiating Jet Burner. 



3X2 



