334  Investigation  of  the  Tannins.  {A 
TOTAI,  AMOUNT  OF  AGAVE;  FIBRES  IMPORTED  BY  THE  UNITED  STATES. 
Year  Ending  June  30,  1898. 
Year  Ending  June  30,  1899. 
Tons. 
Value. 
Tons. 
Value. 
Ixtle  or  Tampico  .... 
Henequen,  Sisal  .... 
2,563 
69,322 
$130,294 
5,171,623 
4,419 
71,898 
$274,811 
9,2ii,337 
AGAVE  FIBRES  IMPORTED  BY  THE  UNITED  STATES  FROM  MEXICO. 
1897. 
1898. 
Tons. 
Value. 
Tons. 
Value. 
Irtle  or  Tampico  .... 
Henequen,  Sisal  .... 
6,312 
62,839 

$335,749 
3,^9,415 
2,559 
68,432 
$130,055 
5,104,228 
Philadelphia  Museums. 
SOME  OF  THE  UNPUBLISHED  RESULTS  OF  THE  INVES- 
TIGATION OF  THE  TANNINS  BY  THE  LATE  PROFES- 
SOR HENRY  TRIMBLE. 
Compiled  for  Publication  by  Josiah  C.  Peacock. 
In  presenting  the  matter  which  is  to  be  published  under  this 
heading,  some  explanatory  remarks  will  be  appropriate.  When 
Professor  Trimble  died,  in  August  of  1898,  he  had  in  his  possession 
the  results  of  a  great  many  estimations  of  tannin  which  had  not 
been  published.  It  was  the  intention  of  Professor  Trimble  to  bring 
out  some  of  these  results  in  a  connected  and  logical  manner  in 
future  volumes  of  his  work  "The  Tannins,"  and  for  this  reason 
many  of  the  results  which  could  have  been  published  several 
years  ago  were  withheld.  These  results  represent  a  considerable 
expenditure  of  time,  care  and  work  in  procuring  material  and 
making  the  determinations,  and  it  is  believed  they  will  prove  of 
interest  to  those  studying  the  subject  of  tannin  or  tannin-bearing 
plants.  For  these  reasons  it  has  been  decided  to  publish  such 
ot  these  results  as  could  be  clearly  stated.  The  results  are 
grouped  according  to  the  order  of  plants  from  which  the  material 
was  obtained,  and  the  groupings  are  arranged  alphabetically  as  to 
natural  order. 
