TABLE FOR DILUTING SERUMS 100 TO 500 UNITS PER CUBIC 
CENTIMETER— Conthmed. 
Second dilution — Continued. 
1 of 1st dil. — 
+ 29 = 1:300 
1 
c. 
c. =0.00333 
or 
1 — 
0 “ 
300 units per c. c. 
+ 30 = 1:310 
1 
c. 
c. =0.00322 
or 
0 = 
310 units per c. c. 
+ 31 = 1:320 
1 
c. 
c. =0.00312 
or 
3^0 — 
320 units per c. c. 
+32=1:330 
1 
c. 
c. =0.00303 
or 
1 — 
^3 0 — 
330 units per c. c. 
+33=1:310 
1 
c. 
c. =0.00291 
or 
1 — 
3ro — 
310 units per c. c. 
+31 = 1:350 
1 
c. 
c. =0.00285 
or 
1 — 
3 5 0 
350 units per c. c. 
+35 = 1:360 
1 
c. 
c. =0.00277 
or 
1 — 
3 6 0 — 
360 units per c. c. 
+ 36 = 1:370 
1 
c. 
c. =0.0027 
or 
1 — 
3T0 — 
370 units per c. c. 
+ 37=1:380 
1 
c. 
c. =0.00263 
or 
1 — 
3 8 0 — 
380 units per c. e. 
+38 = 1:390 
1 
c. 
c. =0.00256 
or 
1 — 
3 9 0 — 
390 units per c. c. 
+39 = 1:100 
1 
c. 
c. =0.0025 
or 
1 — 
4 0 0 — 
100 units per c. c. 
+10=1:110 
1 
c. 
c. =0.00211 
or 
1 — 
4T0- — 
110 units per c. c. 
+11 = 1:120 
1 
c. 
c. = 0.00238 
or 
1 — 
4 2 0 — 
120 units per c. c. 
+12=1:130 
1 
c. 
c. =0.00232 
or 
1 — 
4 3 0 — 
130 units per c. c. 
+13 = 1:110 
1 
c. 
c. =0.00227 
or 
1 — 
44 0 — 
110 units per c. c. 
+11=1:150 
1 
c*. 
c. =0.00222 
or 
1 — 
4 5 0 — 
150 units per c. c. 
+15 = 1:160 
1 
(*. 
c. =0.00217 
or 
1 — 
4 6 0 — 
160 units per c. c. 
+16 = 1:170 
1 
c. 
c. =0.00213 
or 
1 — 
4 10 — 
170 units per c. c. 
+17=1:180 
1 
c. 
c. =0.00208 
or 
1 — 
4 8 0 
180 units per c. c. 
+18 = 1 :190 
1 
c. 
c. =0.00201 
or 
1 — 
T9 0 — 
190 units per c. c. 
+19 = 1:500 
1 
c. 
0. =0.002 
or 
1 — 
5 0 0 — 
500 units per c. c. 
TABLE FOR DILUTING SERUMS 200 TO 1,000 UNITS PER CUBIC 
CENTIMETER. 
First dilution. 
1 + 19 = 
= 1:20 1 c. c. = 
0.05. 
Second dilution . 
1 of 1st dil. — 
+ 9 = 1:200 
1 c. 
c. =0.005 or 
1 — 
2^0 0 — 
200 units 
per c. c. 
+10=1:220 
1 c. 
c. =0.00151 or 
slo = 
220 units 
per c. c. 
+ 11 = 1:210 
1 c. 
c. =0.00116 or 
1 — 
240 — 
210 units 
per c. c. 
+12 = 1:260 
1 c. 
c. =0.00381 or 
1 — 
26 0 — 
260 units 
per c. c. 
+13 = 1:280 
1 c. 
c. =0.00357 or 
^TO — 
280 units 
per c. c. 
