the second case and for every group of 25 hectares the premiums 
will be 2:000$000, 1:000$000 and 720$000 respectively. The 
minimum number of trees for the new plantations will be 250 
per hectare for the seringueira and caucho, and 400 for the mani- 
coba and mangabeira; in the case of re-planting, the distance to 
keep between the trees should be from 6 metres to 6m50 for 
the first mentioned case and 5 metres for the second. In order 
to obtain the payment of the premium, it is requisite that the 
trees be well cared for, and that not more than 15 per cent. are 
damaged or useless. 
The subsidiary cultivation of alimentitious plants or of those 
useful for industrial purposes, will secure an annual gratuity 
corresponding to 5 per cent. of the value of the principal 
premium. 
For the cultivation of the seringueira, experimental stations 
will be localized in the Territory of the Acre, and in the States 
of Matto Grosso, Amazonas, Para, Maranhao, Piauhy and Bahia 
and for the growing of the manicoba conjointly with that of the 
mangabeira in the States of Piauhy, Ceara Pernambuco, Bahia, 
Minas Geraes, S. Paulo, Goyaz, Parana and Matto Grosso. 
Each station will have an area of from 80 to 100 hectares, the 
land selected having to be suited to the climatic and agro- 
‘logical conditions exacted by the nature or quality of the plant to 
be cultivated. 
Besides the grounds for experimental cultivation, each 
station will possess laboratories of vegetable physiology for the 
testing of seeds and phytopathology, of agricultural entomology ; 
of agricultural vegetable chemistry and bromotology and of 
micropiology and technology; an agricultural and woodlands 
museum; a gallery of machines and a meteorological post. 
Thus it will be properly equipped in order to serve those 
who may consult it upon any matter whatsoever, within 
the scope of its competency, carry out the analysis of manures 
and other chemical fertilizers, plants and waters, distribute 
plants and selected seeds, study the diseases common to 
growing plants and the means of combatting them, making com- 
monly known by means of the publication of an official bulletin 
which will be distributed gratuitously to all interested parties, 
the results obtained relative to the most practical and economical 
means of carrying out the cultivation of rubber, the best means 
of bettering its condition, its preservation, the packing of the 
products, etc. 
In order to stimulate the creation in Brazil of the industries 
for refining and manufacturing all kinds of articles made of 
rubber, monetary premiums will be instituted as well as exemp- 
51 
