Dr. A. Schulte im Hofe 93 
planters and the Colonial Office to the influence 
of the leading members of the Committee 
of Colonial Agriculture (Kolonialwirtschaft- 
lichen Komitee). Apparently there was an 
impression that only such questions of tropical 
agriculture should be countenanced as had 
obtained the approval of the Committee, and 
that the least that could be done in connection 
with any other investigations and endeavours 
was to place difficulties in the way. Under 
these circumstances I was particularly pleased 
to gain the support of Mr. Monteiro de 
Mendon¢a of Lisbon, the proprietor of the 
well-known cacao plantation, ‘‘ Boa Entrada” 
in San Thomé. Just as some years earlier, 
when engaged in studying the cultivation and 
manufacture of indigo and tea, I was most 
kindly received by the English in India, so, on 
this occasion, it was by the Portuguese. Thanks 
to this I commenced work in San Thomé in 
1903, and the conclusions | had arrived at as 
the result of the investigations I carried out 
in 1896 in the Cameroons, and continued in 
Germany, were fully confirmed. 
Researches on Cacao Fermentation at San Thomé. 
To enable me to carry out the oxidation 
process, two oxidation ‘chambers were erected 
in San Thomé, fitted with a heating apparatus, 
by means of which the temperature in both the 
chambers, either singly or together, could, 
when desired, be raised to, or maintained at, 
