PARANA PIXI': OF SOL'THERN BRAZIL 



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In considering the anatomical structure and function, it has been 

 found that: 



1. No resin ducts have been encountered. 



2. When cut, no resinous exudations occur as in our pines, but 

 that around the base of the knots there seems to collect a generous 

 portion. 



The following tables are the results of the tests made by the writer : 



Table 3. 



[Based on air dry measurements.] 



In comparing these results with those given in the table taken from 

 the prospectus, it will be seen that the specific gravity obtained by the 

 writer is considerably lower than that of the pro.spectus. However, 

 available figures from tests made both in the United States and South 

 America place the specific gravity of Parana pine at between .500 and 

 .600, so that the results obtained by the writer check more closciv 

 than do the figures of the prospectus. 



Taking up now a discussion of the rest of the prospectus, it appears 

 that it was not until the latter part of the nineteenth century. al)out 

 1880, that the timber of Parana pine came to be noticed outside of a 

 limited market. All the early attempts to introduce it on the markets 

 of Rio de Janeiro and Sao Paulo were failures because, c|uoting from 



