No. 6. DEPARTMENT OF AGRICULTURE. 215 



furHier consideration here. Deep-setting sjsttnns vary somewliat 

 in cliarat'tcr and eltifiency. Smith may nse a form capable of 

 doing good" work when conditions favor, and he may run it well. 

 Jones may have a so-called dilution separator — sometimes, and well- 

 called, a delusion sepaiator — and get quite likely a richer cream than 

 Smith as a consequence, but a good deal less of it. Or one may have 

 a centrifugal separator and (he other, none; or both may have the 

 same device and handle it in diirerent manners. 



Many of the items already referred to ati'ect cream as well as milk 

 tests. Breed, inddviduality, lactation changes, etc., play their part 

 here. The term "Jersey Cream" is usually held to be a synonym 

 for richness. As a matter of fact, Jersey milk properly creamed 

 in a deep-setting device is apt to make thinner cream than does the 

 milk of other breeds containing smaller fat globules. In general, 

 milk containing relatively small fat globules creams less thoroughly 

 than that containing larger ones, but such cream as is thrown up is 

 usually denser and richer. On this account as well as because of its 

 v>'ell-known greater richness, stripper milk is apt to make a richer 

 deep-setting cream than does new milk. 



II. VARIATIONS IN TESTS BETWEEN CREAMERIES. 



Why should Smith's milk or cream taken this loeek to Browri's 

 cream^ery and next week to Rol)insovb s creamery test differently? 



I presume this is seldom done in this State. It is a common 

 practice in Vermont; but it is an unwise procedure, since it accomp- 

 lishes nothing. 



When we go to bed at night we breathe a prayer in which are to be 

 found the words "Lead us not into temptation." Human nature 

 is so constituted that it often happens that a patron, who takes his 

 milk or cream from Brown's creamery to Robinson's, is essentially 

 leading the latter into temptation, into which he is apt to fall. He 

 may feel inclined to raise the test, to make it read, or to report its 

 reading, higher than it really is. In my judgment such a test is not 

 a test of the milk, but of human nature; and the milk of human 

 kindness is altogether too apt to be curdled by such a trial, as is 

 the milk of the cow by the sulphuric acid of the Babcock method. 

 Such a comparison has no standing and means nothing. There are 

 better ways whereby one may find out whether Brown's work at the 

 creamery is correct or is not correct. One may help himself or be 

 advised by the experiment station. 



HOW TO CHECK THE CORRECTNESS OF CREAMERY TESTING. 



I believe that a Babcock apparatus should be located in every 

 dairy community; and that there should be there, also, some young 

 man or woman capable of running it in a satisfactory manner, whose 



