A^'cwbei-Pimm'}       Recollections  and  Reminiscences.  485 
The  succeeding  table  gives  the  results  with  tincture  of  nux  vomica 
(fat)  at  the  end  of  the  second  twenty-four  hours. 
In  these  experiments  we  still  notice  an  increase  in  the  growth  of 
the  radicle  over  that  of  tincture  of  nux  vomica  free  from  fat. 
m 
CONCLUSION. 
At  the  present  time,  when  the  assaying  of  drugs  is  of  so  much 
importance  to  the  physician  and  also  to  the  pharmacist,  it  is  need- 
less to  say  that  any  methods  which  will  enable  us  to  arrive  at 
results  which  can  be  used  directly  or  calculated  so  as  indirectly  to 
be  of  value  to  the  professions  are  of  considerable  importance. 
The  question  arises,  how  can  the  figures  obtained  be  translated  so 
as  to  be  of  practical  value.  From  the  results  obtained  we  may  say 
generally  that  the  rate  of  growth  of  the  radicles  in  the  solutions 
containing  toxic  principles  is  inversely  proportional  to  the  toxicity 
of  the  solution. 
The  results  of  the  foregoing  experiments  tend  to  show  that  there 
is  a  definite  solution  of  alcohol  or  nux  vomica  alkaloids  that  is 
toxic,  and  that  with  solutions  containing  different  amounts  of 
alcohol  or  nux  vomica  alkaloids  there  is  a  definite  measure  of 
growth  depending  upon  the  quantity  contained  therein.  Inasmuch 
as  this  is  to  be  taken  as  a  measure  of  the  amount  of  alcohol 
or  alkaloids  affecting  the  plants  experimented  upon,  it  is  seen  that 
we  have  here  a  direct  means  of  measuring  the  quantity  of  alcohol 
or  alkaloids  in  the  respective  solutions. 
RECOLLECTIONS  AND  REMINISCENCES  OF  PROF.  WM. 
PROCTER,  JR. 
In  response  to  a  letter  from  the  editor  of  this  Journal,  the  fol- 
lowing letters  containing  some  recollections  and  reminiscences  of 
Professor  Procter  have  been  received  : 
"  Dear  Sir: — I  became  personally  acquainted  with  Professor 
Procter  in  1868,  and  subsequently  have  met  him  occasionally  in 
Philadelphia,  in  New  York  and  at  the  annual  meetings  of  the  Ameri- 
can Pharmaceutical  Association.  When  in  Philadelphia  I  called  upon 
him,  and  he  upon  me  when  in  New  York.  Being  of  a  retiring  dispo- 
sition, Professor  Procter  was  at  first  reticent  with  strangers,  but  a  gen- 
ial and  sympathetic  companion  and  friend  when  better  acquainted. 
