of the Genera Tetrao and Ortyx. 149 
I am partially acquainted with two other species of Tetrao, of 
the greatest interest, but for the present I forbear to describe 
them; the more especially, as I look forward at no distant 
period to again resuming my labours on the western parts of 
the same continent, the result of which, in due season, it will 
afford me the greatest pleasure to submit to the Society. - 
