244 
cells. However, this very thing was carefully avoided, and 
although it is somewhat difficult to get the pollen without 
getting wax at the same time, I am certain that there could not 
have been enough obtained in that way to give the percentage 
resulting, even when corrected for the oxidation which occurred. 
As one would naturally expect, there was a large amount of 
water in this substance, 12.75 per cent. being obtained. The 
bulk of the remainder is protein, 64.4 per cent., not too high when 
we remember that pollen is mainly protoplasm. 9.23 per cent. 
of fat were found. A peculiarity of this fat is worth noting. It 
appeared to be made up of several oils, some of which were 
extremely volatile and had a very penetrating disagreeable odor. 
Both cane sugar and sucrose were present, the total sugar content 
being 9.5 per cent. of which 1.3 per cent. was cane sugar, and 
8.2 per cent. sucrose. The wax would probably give between 
three and five per cent if a more accurate determination were 
made. 
Per Cent. 
Water... 12.75 (Would vary with conditions.) 
Protein. ers 64.4 (Probably constant to a fraction of a per cent.) 
Fat. ылын fos 9.23 (Probably constant to a fraction of a per cent.) 
Süedr ооо 9.00 (Would vary with the amount and kind of honey.) 
WX... us З ќо 5 (Probably fairly constant.) 
TRAGOPOGON IN COLORADO 
Bv T. D. A. COCKERELL 
Some years ago (1905) I noted that two species of Tragopogon 
were growing in Boulder, Colorado. Upon examination, they 
appeared to accord excellently with the two species credited to 
