TESTING DAIRY PRODUCTS BY THE BABCOCK TEST. 6$ 



ized iron or copper tank, holding 4 to 6 quarts, with a tubula- 

 ture near the bottom to which is attached a small flexible rubber 

 tube, about 3 feet long - , provided with a pinch-cock and glass or 

 metal nozzle. For use, the tank is filled with hot water, placed 

 on a support a foot or two above the machine; by means of the 

 rubber tube all the bottles can then be filled without moving 

 them from their places. The flow of water is controlled by the 

 pinch-cock. 



Sampling Tube. For this purpose several different tubes 

 have been devised, all of which are efficient when properly used. 

 The simplest one of all is a small metal tube about 2 feet long 

 with a bore of about three-sixteenths of an inch in diameter. 

 This tube is lowered slowly into the pail of milk or cream so 

 that it will fill as it goes down, then the thumb or finger is 

 pressed over the top opening so as to hold the contents in 

 when the tube is taken out. The chief objection to this tube 

 is, it has so small a bore that it holds but little cream and fills 

 very slowly, thereby increasing the liability of letting it into the 

 milk or cream faster than it fills and not getting a good sample. 



Another form recommended by the Connecticut (Storrs) Sta- 

 tion is a metal tube similar to the one above described with a 

 stop-cock at the top to close it. This tube has an internal diam- 

 eter of about one-fourth of an inch, bushed down to one-eighth 

 of an inch at the lower end so the milk will not run out before 

 the stop-cock is opened. 



Still another form is the so-called Scoville Milk Sampler, 

 which is a long metal tube with a valve at the bottom, which 

 closes when the tube is filled with milk. 



The Station uses a tube of its own design that works very 

 satisfactorily. It consists of a brass tube about 2 feet long and 

 five-sixteenth of an inch inside diameter. The lower opening 

 is provided with a valve which is opened or closed by means of 

 a small rod passing through the interior of the tube to a handle 

 at the top. The parts are connected by screw connections so 

 they can be readily detached and cleaned as necessary. 



