454 



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



12376. 



12378. 



No. 12388. No. 12376. 



12374. SOIL SAMPLING TUBE HOIST. This contrivance will fill the need for some device for remov- 

 ing Soil Sampling Tubes from the ground. Movement is imparted upward on the handle and, 

 the leverage being ample, no great effort is needed to remove tubes from the most solid soils. 



Hoist only, without Sampling Tube $8.00 



SOIL SAMPLING TUBE, Whitney's, especially useful for obtaining samples for determination 

 of moisture content and nitrifying power of soils; a brass tube 9 inches long, sharpened at 

 one end and with a mark 6 inches from that end, provided with rubber caps for closing each 



end air tight '. 70 



SOIL SAMPLER, Bacteriologist's, after specifications by H. A. Noyes of the Purdue University 

 Agricultural Experiment Station. This sampler is a brass cylinder 11 inches long by 2 inches 

 in diameter, with an especially constructed cutting edge. The end having the cutting edge 

 is furnished with a tight fitting brass cap 2 inches in height. When the upper end is 

 plugged with absorbent cotton, the sampler is ready for sterilization. The sampler is easy to 

 sterilize, easily kept clean, easy to use, and durable, and hence will be found valuable in bac- 

 teriological work. This apparatus will (1) sample accurately soil subjected to any system of 

 management; (2) not interfere with the field conditions existing where the sample is taken, 

 thus making future samples comparable; (3) give a representative sample of soil; and (4) 

 keep the sample practically under field conditions until analyzed, since the tube itself acts as 

 container for the sample. Graduated as shown in the illustration, and with directions for 



use 2.50 



DRIVING HEAD, of cast iron, for use with No. 12378 Soil Sampler 40 



SAMPLING CLOTH, 18x18 inches, for receiving soil samples from Soil Samplers. Impervious 



to moisture * per dozen 1.00 



12386. SAMPLE CARRYING OUTFIT. The inconvenience of cumbersome fruit jars and soil bags is 



done away with in the design illustrated. A neatly finished carrying case, with door and 



handle, holding one dozen seamless tin cans of one pint capacity, with tight-fitting lids. (See 



. No. 1828.) The suitability of these cans for drying pans makes this an economical outfit, 



since special pans for the drying oven are not needed. Complete with one dozen cans. . . 4.50 



1828. SOIL SAMPLE CANS, Seamless Tin, same style as used in No. 12386. 



Capacity, ounces % 1 2 4 8 16 24 



Per dozen 25 .30 .50 .70 1.00 1.60 1.80 



For other SOIL SAMPLE CANS AND BOXES, see Boxes. 

 SOIL SAMPLE JARS, see Jars. 

 SOIL SCOOPS, see general heading Scoops. 



12388. SHAKER, Chest of Drawers Design, for preparing soils for mechanical analysis. Essentially 

 as described in Bulletin 84 of the Bureau of Soils, but with hinge mounting similar to that 

 described under No. 12060 Shaker. The gearing is of the enclosed type and is arranged to be 

 belted to any % h. p. motor having V-groove pulley. The chest is substantially made of 

 hardwood nicely finished, and has six drawers each with eight compartments for holding 

 No. 12391 Sterilizing Bottles. Complete on a massive hardwood base with forty-eight No. 



12391 Sterilizing Bottles, but without motor 78.50 



For MOTORS for use with No. 12388, see general heading Electrical Instruments. 



12379 

 12382, 



