OF METEOKOLOGICAL INS TK U MENTS. 55 



266. Gyle Tuil Thermometers, with enamelled tubes in single degrees, showing 4O to 

 120 average, 12-inch, scales on mahogany with protected stem, 2 feet long 

 (fig. 266), p. 53 1 10 O 



267. 2 feet 6 inch. . 1 12 



268. 3 feet . . 1 15 



269. 3 feet 6 inch. . 1 17 6 



270. 4 feet 200 



272. 4 feet 6 inch. , 230 



273. 5 feet . 270 



274. 5 feet 6 inch. . 2 10 



275. 6 feet . 2 15 



276. MASH TUN THERMOMETERS, enamelled tubes, single degree showing 100 to 212 



same size as above (fig- 276), p. 53 . . . 5s. each extra 



277. Steam or Mot Water Thermometer, small size, to 220, brass tube, plain and 



bold, 7-inch, scale, with nut screw, for showing the temperature of water 

 pipes above 2 inches diameter in heating apparatus; carefully packed and 

 water-tight, with screw plug for closing the tube when the thermometer is 

 not in use . . . . . . . 180 



278. STEAM OB HOT WATEE THERMOMETER, of larger size, with porcelain scale, the 



tube projecting 4 inches, (fig. 278), p. 53 . . . 1 12 



279. Superheated Steam Thermometer, as made by L. CASELLA for the Govern- 



ment . . . . . . . 180 



280. IRON MERCURY CUP, occasionally used with the above, or for closing the opening 



when the thermometer is not in use . . . 3 6 



282. Varnish laker's Thermometer, 3 feet long, with 12-inch, brass scale, in iron 



case . . . . . . . . 1 15 



283. Hot Blast Thermometer, of milk glass for testing hot air at iron works 



060 



284. Vinegar laker's Thermometer, to 120 Fahrenheit . . 016 



Gas thermometers, see Gas Gauges. 



285. Sugar Boiling Thermometers, 3 feet, with 12-inch, scales to 280, in japan 



cases . . . . . . . . 1 10 



286. SUGAR BOILING THERMOMETERS, in copper cases . . ' 1 15 



GAUGING INSTRUMENTS, FOR MALSTERS, DISTILLERS, * 

 TIMBER MERCHANTS, ETC. 



287. Complete set of Gauging Instruments, as used by the Board of Customs, with 



book of directions and boxwood calipers for warm climates . 3 13 6 



288. COMPLETE SET OF GAUGING INSTRUMENTS, also adapted for oil gauging 440 



289. Hull Calipers, for measuring square timber, 12 inches, 25s.; increasing Is. 



for every 2 inches up to 36 ; and 2s. ditto, up to 48 inches 



290. Bow CALIPERS, for round timber, 10 inches 17s. ; increasing Is. per inch up 



to 48 inches 



Iron Bar leasures for use with the above : 



292. 3 feet f -square, divided on four sides . . . 15 



293. 3 feet f-square, divided on two sides, with handle . . . 0110 



294. PLANK EULE CALIPER, 12-inch. . . . . . 046 



295. SCRIBING IRON 036 



