586  Relative  Activity  of  Digitalis.      {A  August'  fgSs™' 
Table  IV. 
Intravenous  Cat  Method  Assay  of  Select  Cleaned  Digitalis — 
One  Per  Cent.  Infusion. 
Date  and  Time  of  Test. 
No.  of 
Cat. 
Sex  Wt.  in 
Kg. 
Mils  of  1% 
Inf.  Used. 
Mils  Used 
per  Kg. 
Mgs.  of  Drug 
per  Kg. 
Time  in 
Minutes. 
4- 
-i-i8,  3:54  P.M  
I 
2.825  M. 
23 
8. 141 
81.41 
36 
4- 
-I-l8,  4:54  P.M  '. 
2 
2.675  F.* 
19.5 
7.289 
72.89 
30 
4- 
3 
2.685  M. 
26 
9-683 
96.83 
42 
4- 
2.575  M. 
14.I 
8.952 
89.52 
18 
4- 
t 
2.155  M. 
17.4 
8.074 
80.74 
26 
*  Cat  Number  2  was  pregnant,  nearly  full  term. 
Average  M.  L.  D.  excluding  cat  Number  2,  87.62  Mg.  of  select  cleaned 
digitalis  per  Kg.  of  cat. 
Table  V. 
Intravenous  Cat  Method  Assay  of  Petioles  Separated  from  Select  Clean 
Digitalis — Four  Per  Cent.  Infusion. 
Date 
an 
d  Time  of  Test. 
No.  of 
Cat. 
Wt.in 
Kg. 
Sex. 
Mils  of 
4%  Inf. 
Required. 
Mils 
Required 
per  Kg. 
Mgs.  of 
Drug 
per  Kg. 
Time  in 
Minutes. 
3-27- 
18 
,  9:53  P.M.  .  .  . 
I 
3-05 
F.* 
18.4 
6.O3 
241.2 
25 
3-27- 
18 
,  11:31  P.M.  .  . 
2 
3-25 
M. 
28.2 
8.67 
346.8 
44 
3-28- 
18 
,  2:37  P.M.  .  .  . 
3 
1-635 
F. 
13-9 
8.509 
340 
20 
3-28- 
18 
,  10:52  A.M.  .  . 
4 
2.78 
■  F. 
21.8 
7.84 
313.6 
34 
4-21- 
18 
,  IO:3I  P.M.  .  . 
5 
2.2 
F, 
17.25 
7.84 
313-6 
21 
4-21- 
18 
,  II  :26  P.M.  .  . 
6 
2.48 
F. 
21-55 
8.69 
347-6 
29 
*  Cat  was  nearly  full  term  pregnant. 
Average  M.  L.  D.  excluding  cat  No.  1,  332.36  Mg.  of  petiole  per  Kg.  of  cat. 
Table  VI. 
Intravenous  Cat  Method  Assay  of  No.  50  Dirt  Siftings  Separated  During  the 
Process  of  Cleaning  Digitalis — Four  Per  Cent.  Infusion. 
Date  and  Time  of  Test. 
No. 
of 
Cat. 
Wt.  in 
Kg. 
Sex. 
Mils  of  4% 
Inf.  Used. 
Mils  Used 
per  Kg. 
Mgs.  of 
Drug  per 
Kg. 
Time  in 
Minutes. 
3-37-18,  5:11  P.M  
I 
3-355 
F> 
90 
26.82 
1072 
129 
3-28-18,  4:13  P.M  
2 
2.8 
M. 
35-15 
12-55 
502 
35 
3-29-18,  8:24  P.M  
3 
3-8 
M.* 
66.6 
17-52 
700.8 
121 
3-30-18,  5:22  P.M  
4 
1.865 
M. 
27-5 
14.74 
589.6 
34 
3-30-18,  7:43  P.M  
5 
3-125 
F. 
37-4 
II.96 
478.4 
63 
3-30-18,  9:39  P.M  
6 
3-87 
F.* 
79-4 
20.51 
820.4 
130 
3-3O-18,  II  =36  A.M..  .  . 
7 
2.7 
F.* 
53-9 
19.96 
798.4 
100 
3-3I-I8,  10:15  P.M..  .  . 
8 
3-325 
M. 
45-3 
13.62 
544-8 
68 
4-I-I8,  12:00  M  
9 
3-75 
M. 
40.8 
10.88 
435-2 
70 
*  Number  one  and  number  six  were  each  nearly  full  term  pregnant 
Numbers  three  and  seven  for  some  unknown  reason  were  excessively  tolerant. 
Average  M.  L.  D.  excluding  cat  No.  1,  cat  No.  6,  cat  No.  3,  and  cat  No.  7, 
510  Mg.  of  No.  50  Dirt  siftings  per  Kg.  of  Cat. 
