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



357 



THE NAFIS I 

 FAULTLESS STIRRING ROD 



~ SALT TEST _ 



No. 9095. 



No. 9092. No. 9101. No. 9108. 



No. 9130 



No. 560. 



9080. STIKRING ROD, Nafis' Faultless, for use in acidity tests. This rod is hollow and contains a 

 piece of wool of the exact color which the sample of milk should have when the acidity test 



is complete $0.18 



ACIDOMETEE, see general heading Hydrometers. 

 APRONS, see general heading Aprons. 



9084. ALKALINE TABLETS, Farrington's, for use in determining the degree of acidity of milk, cream, 



or whey Per box of 50 tablets .25 



560. BALANCE, Cream, Wisconsin Hydrostatic, devised to meet the demand for a simple and cor- 

 rect method of weighing cream into test bottles. It consists of a specially devised brass float, 

 which is placed in a cylinder of water. The instrument is weighted so as to float in a verti- 

 cal position, and has at the top a small pan on which a cream bottle and a 9-gram weight 

 are placed. By means of an adjustable pin point, the point to which the float sinks in water 

 is readily marked. The 9-gram weight is then taken from the pan and the cream to be 

 tested is weighed by dropping it slowly into the bottle with a pipette until the float sinks to 

 the same point it reached with the weight on the pan, when the test bottle will contain 

 exactly 9 grams of cream. Very accurate weighings can be made with this instrument and 

 as there are no bearings to rust it will retain its sensitiveness indefinitely. Complete with 



metal cylinder, float, and 9-gram weight, but without bottle 5.50 



For other BALANCES for Milk and Cream Testing, see general heading Balances. 



9088. BOTTLES, Aluminum Screw Cap, for holding samples of cream. With cork washer. One ounce 

 capacity Per dozen .90 



9092. BOTTLE, Butter Test, Illinois pattern, a 9 inch bottle for testing 9 gram samples of butter. The 

 neck is graduated for reading up to 90 per cent., and the results obtained compare very favorably 

 with those obtained by chemical analysis .50 



9094. BOTTLES, Milk Jars, for composite tests, made of flint glass; will stand much hard usage. 



Capacity, pints % 1 2 



Per dozen 1.00 1.30 1.60 



9095. CAPS, Tin, for No. 9004 Milk Jars. Will fit either size, and keep out dirt and impurities. 



Per dozen .30 



BOTTLES, MILK AND CREAM TEST, ORDINARY GRADE 



9102. BOTTLE, Milk Test, 6 inch, 18 gram, 8 per cent. Graduated to ^Q P^ ce. t .20 



9104. BOTTLE, Milk Test, 6 inch, 18 gram, 10 per cent. Graduated to aj per cent 20 



9108. BOTTLE, Cream Test, 6 inch, 18 gram, 30 per cent. Graduated to Ms per cent 



9110. BOTTLE, Cream Test, 6 iiich, 18 gram, 40 per cent. Graduated to 1 per cent 25 



9112. BOTTLE, Cream Test, 6 inch, 18 gram, 50 per cent. Graduated to 1 per cent 25 



0114. BOTTLE, Cream Test, 6 inch, 9 gram, 50 per cent. Graduated to % per cent. Direct reading. .30 



9120. BOTTLE, Cream Test, 9 inch, 18 gram, 30 per cent. Graduated to % per cent 40 



9122. BOTTLE, Cream Test, 9 inch, 18 gram, 50 per cent. Graduated to % per cent 40 



9124. BOTTLE, Cream Test, 9 inch, 18 gram, 55 per cent. Graduated to % per cent 40 



9126. BOTTLE, Cream Test, 9 inch, 18 gram, 100 per cent. Graduated to 1 per cent 60 



NOTE: Nine inch Cream Test Bottles are too long for regular Babcock Testers. See No. 9206 



Cream Tester. 

 9130. BOTTLE, Skim Milk, Perfect, 6 inch. Graduated to y loo per cent 70 



