STATUS OF PASTEURIZATION OF MILK. 7 
TABLE 2.—Proportion of cities having pasteurized milk and average per cent of 
their milk supply which was pasteurized in 1921. 
Number of | Number of} Percent Average 
cities cities of cities per cent 
Population of cities. reporting with no with of milk 
pasteur- pasteur- pasteur- pasteur- 
ized milk. | ized milk. | ized milk. ized. 
Morena 500: (00> 24 5 58 oe See, 12 0 100 95 
TO OOIT ODO 000M thet aoe an See a eae Ea ruy ay. ts 42 0 100 72 
OO COD OOOEE. ees sas >. oc. me, Rep tien BE Oh 15 0 100 68 
SOOT O75 UO eee as. oe ee a ea ee Id Sereda ee 2 29 5 85 65 
ENE SONG PR a2 So Oo ko sate et tes ts Se 55 7 89 58 
MOROCCAN 2 doo cae sae Seth Ose cee oe ab ae 77 49 61 51 
LU ESSU ICING 1 Gees See ie eee ee = Fan eet AER yS 36 52 41 53 
PAN [ro bees tee aie ees oe I. eee a Re 266 Psu ls Sse Sela oe ee 
For those who are particularly interested in the quantity of milk 
pasteurized in various cities, Table 3 has been prepared. In it is a 
list of 266 cities that reported pasteurized milk and the approxi- 
mate quantity of milk pasteurized. The cities are listed in order of 
their population given in the 1920 census and include all cities re- 
porting pasteurization up to the time the table was prepared. It is 
particularly interesting to note the extent to which milk is 
pasteurized even in the smal] cities. 
METHODS OF PASTEURIZATION. 
At present three processes of pasteurization are practiced in this 
country. The first is known as the flash, or continuous process; the 
second, the holder, or holding process; and the third is known as 
pasteurization in the bottle. 
TABLE 3.—Approximate quantity of milk pasteurized in various cities as shown 
by returns from questionnaire sent in 1921. 
Per cent Per cent 
Popula- A Popula- : 
City. tion, 1920] Of milk City. tion, 1920] Of mile 
census. | toutrized. census: | terized. 
Wow: York, No Ye foo 85-35. 5, 620, 048 98:\)- Columbus: Onion 4-222. <-5.5: 237, 031 75 
lereten Wile  e 2,701, 705 98 fl Mouisville: Ky 2. to eS) 234, 891 85 
Philadelphia, Pa............- 1, 823, 799 O8iIl St.Paul, Minn i... 92252205: 934, 595 60 
Depot, Mich--s_-....-.-..... 993, 678 Osi Micron. OHIO te oie sso 208, 435 98 
Cicyeland, Ohio... .-...:...:- 796, 841 BS he Omaha Nebe <2. sett stt es 191, 601 30 
DOW S PMO x sao soo osa es 772, 892 92 || Worcester, Mass...........-.-- 179, 754 65 
aston, Massoeses 028222252. 748, 060 OO | WO VEACUSC NERY one eee eee ee AAT 66 
Ralamoere Md se. 2 222i 25... l | 733, 826 OS RACH mMonG: Vase sen ose 171, 667 97 
1B HiG OL EU 3 ees a | 588, 343 95 || New Haven, Conn...........- 162, 537 55 
Los Angeles, Calif..........-. 576, 673 86) ||) Memphis;“Tenn== === =222222- 162, 351 50 
S52 a 506, 775 100 || Dallas, Tex......-.--.----.--- 158, 976 70 
San Francisco, Calif. ......... 506, 676 Shi Dayton. Ohio eas.) 2) saee" 152, 559 95 
Milwaukee, Wis.........---.-- 457, 147 98:1 ouston) Text tee. 25.462 53s: 138, 296 50 
Washington, "DiC 2. $225..22.- 437, 571 9is|\HartiordlConne-sssscee. 2 see 138, 036 70 
GWA KEIN Uma -\scit 2s cess 414, 524 80 || Grand Hapics, Miches= esse: 137, 634 90 
Cinemnati, Ohio-2: 5. 2.222... 401, 247 983 ||\patersony NERO... oe secon. © 135, 875 80 
Minneapolis, Minn...........- 380, 582 94 || Youngstown, Ohio. ........-- 132, 358 92 
Kansas City; Mo......-.-.---. 324, 410 50 || Springfield, Mass......-....-. 129, 614 95 
meabhle»Wastt! 22.2 .222222552. 315, 312 85 || New Bedford, Mass.........-- 121, 217 40 
eechestersinery 20s. 5.5.2.522- 295, 750 Gol walPRiveriMasss: = pee cee 120, 485 55 
Rartlands Oreg.)...$2.5.2-252 258, 288 Hau erentonewNe dee cemecasoe sees 119, 289 60 
BenvercCole. . oS. 562222522 256, 491 80 || Nashville, Tenn............-- 118, 342 40 
Providence, R.I.........---. 237, 595 60 || Salt Lake City, Utah.......-- 118, 110 88 
