486 



CENTEAL SCIENTIFIC CO., CHICAGO, U. S. A. 



See Note on Nos. 13318-20. 



No. 13320. 



13266. SYRINGE, Injecting, Kitchen's Form, for injecting precise amounts. The mixtures are made in 



the syringe barrel and enough sterile salt solution is placed in the side arm to wash in the 

 entire dose. By this means the necessity for removing the bulb of the syringe during injec- 

 tion is dispensed with, and accuracy of dosage is insured. Made of resistance glass which 

 can be readily sterilized. Complete with rubber bulb, rubber connection, and antitoxin needle. 

 (For full description see Kolmer's Infection Immunity and Specific Therapy, page 233) . . $1.50 



13267. GLASS BARREL only of No. 13266 60 



13268. NEEDLES only of No. 13266 per dozen 3.00 



13300. TACHOMETER,, Hand, with three scales, rendering it unnecessary to change gears. The instru- 

 ment is mounted in a case of aluminum, black enameled and nicely finished, with nickel-plated 

 ring, and is provided with three dials, reading 75 to 500 r. p. m., 150 to 1000 r. p. m., and 

 750 to 5000 r. p. m. Diameter of dial, 3 inches; length over all, 5 inches; total weight with- 

 out case, 2 pounds. Complete with triangular steel tip, rubber tip, rubber muff, extension rod, 

 and center punch in leather carrying case with handle 75.00 



TALLY, Hand, see Counter No. 3318'. 

 13306. TAPE, Transparent Adhesive, for mending pages of books, drawings, papers, maps, etc., % inch 



wide; 4 yards on spool with metal holder per spool .06 



1536. TAPE, Gummed Cloth, heavy mending tape for strengthening books, pamphlets, maps, etc., % 

 inch wide. A 10 yard roll in special box with slot for drawing out as needed. . . .per roll .20 

 TAPE, Insulating, see No. 5136. 



13310. TAPES, MEASURING, Linen, English. Patent leather case, waterproof coated, with brass fold- 

 ing handle and trimmings. Tape % inch wide, graduated in *4 inches. 



Length, feet 40 100 



Each $1.20 2.25 



13312. TAPES, MEASURING, Linen, Metric. Brass bound case and folding handle. Tape 13 mm wide, 

 graduated in centimeters. 



Length, meters 10 25 



Each 65 1.35 



13314. TAPES, MEASURING, Linen, English and Metric. Nickel-plated brass case with spring wind 

 and center stop. Tape % inch wide, graduated in millimeters and % inches. 



Length, meters 1 



Each 60 .90 



13318. TAPES, MEASURING, Metallic, English and Surveyors. Hard leather case, folding handle, 

 nickel-plated trimmings. Tape % inch wide, made of best woven linen with metallic warp, 

 graduated on one side in tenths of feet and on the other side in links. 



Length, feet 50 100 



Each 4.50 7.50 



13320. TAPES, MEASURING, Steel, English. Metal lined hard leather case, nickel-plated trimmings, 

 folding winding handle opened by pressing pin on opposite side. Tape % inch wide, gradu- 

 ated in feet, tenths, and hundredths. 



Length, feet 50 100 



Each 5.60 9.50 



NOTE: Nos. 13318-20 Measuring Tapes are provided with a new marking by means of which 

 instantaneous readings of both feet and inches can be made without the necessity of referring 

 back to the last entire foot. The method is well shown in the accompanying illustration. 



