CENTRAL SCIENTIFIC CO., CHICAGO, TJ. 8. A. 



335 



No. 8361. 



No. 8366. 



No. 8368. 



No. 8376. 



No. 8378. 



No. 8386. 



8356. 



8360. 

 8361. 

 8364. 



8366. 

 8368. 



8372 

 8376. 

 8378. 



8382 

 8386. 



MAGNIFIERS. Reading Glasses, with nickeled rim and ferrule, and with black wooden handle. 



Xo A B C D E 



Diameter of lens, inches 2 2% 3 4 4% 



Focus, inches 5 6 7 10 12 



Each $0.90 1.10 1.35 1.80 2.25 



MAGNIFIERS. Triple Aplanat, the highest type of hand or dissecting magnifier. They are 

 perfectly achromatic and free from distortion, have an extra long working distance, and 

 furnish an unusually large, flat field. 



Xo 



Magnifying power, diameters 



Focal distance, mm 



Focal distance, inches , 



Working distance, mm 



Diameter real field, mm 



Mounted for use in dissecting microscopes 



Mounted in folding case for hand use 



A 



9 



27.8 

 1.1 



L'4..-, 

 20 



4.25 

 4.25 



B 



12 



20.8 

 0.8 



18.4 

 15 



4.25 

 4.25 



MAGNIFIER, Tripod, giving a large, clear field and sufficient magnifying power for elemen- 

 tary botanical and zoological studies. The lens is focused by screwing up or down in the 

 metal frame 75 



MAGNIFIER. Watchmakers' Glass, double convex lens in vulcanite mounting. Diameter, 25 

 mm : magnifying power, 3 to 5 diameters .60 



MAGNIFIER. Watchmakers' Glass, consisting of two lenses of 12 and 25 mm diameter. The 

 front lens (12 mm) can be removed by unscrewing, thus permitting the use of the rear lens 

 (25 mm). Magnifying powers, 4 and 7 diameters 90 



. MAILING TUBES, heavy pasteboa. J, I%xl2 inches Per dozen .35 



MALLET, Rawhide, round, 6-ounce 1.10 



MALLET, Wood, round, 3-inch face 25 



MANOMETERS, see Gages. 



. MATCHES, Swedish Safety, in packages of 12 boxes Per package .16 



MATRASSES, see Blowpipe Apparatus. 



MATRASS HOLDER, see Blowpipe Apparatus. 



MAUL, of iron, with wooden face and hickory handle. Length of handle, 2 feet; diameter of 

 head, 3% inches; weight. 6 pounds 1.40 



MEASURES, Calipers, see Calipers. 



