Merrill’s Oological Notes f rom Montana. 203 
presence of any such bone, as being one likely to be confounded 
with the carpal bones, in our study of the carpi of Falconidce. 
He sums up the results of his valuable and advanced studies by 
stating, “ Thus we must recognize in birds the presence of four 
tarsal bones, and at least four carpal bones” (op. cit. p. 152) . 
Prof. Huxley in his “Manual” (Manual of the Anatomy of Ver- 
tebrated Animals, New York, 1872, pp. 248-9) has nothing to 
say to us in regard to any such segment ; he concludes with the 
wrist-joint by briefly remarking that “ There are only two carpal 
bones, one radial and one ulnar,” although this same profound 
anatomist, to whom we owe so much, calls our attention, in 
another paragraph, to the much smaller ossicle, in these terms : 
“A small bone, the scapula accessorial is developed on the 
outer side of the shoulder-joint in most Coracomorphce and 
Celeomorphce .” 
One would hardly look for it in Dr. Coues’s elaborate descrip- 
tion of the bird- wing in his “Key” (Key to North American Birds, 
1872, p. 30), as that section was evidently written with a very 
different purpose in view, and certainly not to decide the peculiar 
osteological characters that might be or were already known, to 
occur in the various wings of the many representatives of the 
class. These remarks apply with equal force to all that Professor 
Carl Vogt has to say to us in his paper upon the Archceopteryx 
macrura (Ibis, Oct. 1880), where he devotes a paragraph to a 
revision of the osteological points as they occur in the upper 
extremity of the Ring-Dove. 
OOLOGICAL NOTES FROM MONTANA. 
BY DR. J. C. MERRILL, U.S.A. 
The following notes on the nests and eggs of six species of 
birds may be of interest, as all are rare and two, those of the 
Snowbird and Woodpecker, are, I think, undescribed. These 
nests were found during the past season in the northern part of 
the Big Horn Mountains, so near the Montana-Wyoming boun- 
dary line that in some cases it is impossible to say in which of 
these Territories they were located. 
