138 STORRS AGRICULTURAL EXPERIMENT STATION 
Table 41. The daily milk yield during the summer months 
of I11 cows milked by hand is given in Table 41. The data 
is arranged in such a manner that comparisons may be made 
with Tables 40 and 42. The shrinkage from ‘the first period 
to the second is 11.8 per cent; 12.9 per cent. from the second 
to the third; 15.4 per cent. from the third to the fourth, and 
8.0 per cent. from the fourth to the fifth, or an average of 
12.0 per cent. for the four periods. , 
This report of the results with milking machines is sub- 
mitted without discussion or comment. No conclusions should 
be drawn from so limited an experience. The resignation of 
the writer and his withdrawal from the Station Staff while 
the experiment was in progress makes it necessary to offer 
this rather premature report of the preliminary work. 
The first experience in the use of these machines is as much 
a test of the skill of the operator as of the efficiency of the 
method. From the experience thus far gained better results 
are anticipated in the future. Particular attention must be 
given to the proper adjustment of the teat cups and mouth- 
pieces to the size of the teats of each cow. Each cow should 
always be stripped out clean by hand immediately after re- 
moving the machine. The failure to do this systematically 
no doubt affected the yields reported in Table 40. The con: 
stant stream of visitors and sightseers no doubt had some 
effect upon results. 
