126 STORRS AGRICULTURAL EXPERIMENT STATION 
A series of experiments conducted when these filters were 
used, is given in Table 33. It will be noticed by a study of the 
column marked “Total Bacteria,” that the relation existing 
between the hand and the machine drawn milk is entirely 

TABLE 34. 
Comparison of hand and machine drawn milk. Previous 
formalin treatment continued, changed to teat cup connectors 
without air relief. 

ees 


















35 + oy a a wid Ba bo 
3 Method of] o-4 'g 5 38 an 8 Beg ar 
Date a s Milking ES (e) 25% < S @ 8O = 35 vd 
BE aa) Og a | Mga | 78s | as 
Feb. 14 |612|Machine |p.m.j 7,100 2,600 58 192 | 55* 
Hand |p. om. 1-330 425 8 138ahe3a 
Feb. 15 |622|Machine |p. m. 1,260 315 30 Llifigriene 
Hand |p. mM. 590 Zou} 0 O | 92 
_Feb. 16 |624)/Machine |a.m.| 3,620 1,000 17 125-1258 
Hand |a.m.| 10,460 Bon a3 858 | 58 
Feb. 16 |630/Machine |p. m.| 5,860 1;F700 0 342 mos 
Hand |p.m.| 4,400 675 8 150 | 94 
Feb. 19 |636/Machine |p. mo. 3,425 2,230 17 20) Nees 
Hand |p. mM. 880 470 0 40 | 70 
Feb. 21 /644|/Machine /p.m.| 5,100 2.120 17 1337370 
Hand |p. mM. ede 130 0 50 | 48 
Feb. 22 |646)Machine |a.m.| 3,525 1,580 0 200 1nd oO 
Hand |a.m.| 15,930 3,080 67 350 | 48 
Feb. 23 |654/Machine |a.m.| 6,335 3,880 0 665)--5a 
Handi au wy oo 874e40 700 67 67 W852 
Feb. 26 |662)Machine |a.m.| 10,570 3,380 O 150 Ars 
Hand |A.m.| 3,725 680 O 142 | 80 
Feb. 26 |664/Machine |p. m. 4.735 2,660 8 67 {119 
Hand |p. . 1,090 350 0 17 | 94 
Feb. 27 |666|Machine |a.m.| 12,020 4,950 ao 250 | 88 
Hand |a.m.| 45,720 S2..0U oLZ 92°1 59 
Feb. 27 |668|Machine |p. m.| 27,235 14,060 125 3071963 
Hand |p. m. 1,785 700 0 100 | 63 
Feb. 28 |670|Machine |a.m.) 28,850 11,740 16 233 | 95 
Hand |a.m.) 11,835 3,140 0 O20; fee 
Mar. 1 |676)Machine |a.m.| 25,635 13,020 ily 625. | 68 
Hand tA) + 2.325 1.275 8 IZ 30 
Mar. 2 |684/Machine |p. m.| 27,550 12,840 8 ‘992 | 90 
Hand “}p.'m’ 4,330 850 100 WoT oes 
Averages /|Machine LEe2t 5,209 22 238 |itd 
| Hand 7,467 3.226 40 181 | 69 

different from that shown in the previous tables. In nearly 
every case the germ content was decidedly smaller in the milk 
drawn through the machines. In some cases the numbers are 
