264 SHOULDER-GIRDLE IN MONOTREMES, 



Cuvier added to our knowledge by his dissections, as also did 

 Owen (15). In the work by Cuvier and Laurillard, published in 

 1849, are to be found many excellent illustrations of the muscles 

 of Ornithorhynchus (4). Coues (3), working in America, wrote in 

 1871 a monograph on the myology of this animal, and his views 

 are interesting, since, with the exception of Owen's short account 

 in Todd's Cyclopaedia, he had seen no previous works on the 

 muscles of this animal, and indeed had Coues not been influenced 

 by Owen, it is probable that he would in several cases have 

 assigned to the muscles a more correct homology than he did. 



Westling (20) in 1884 published a paper on the nerves to the 

 fore and hind limbs of this animal, and this seems to have been 

 the first paper which dealt in detail with the nerve supply to the 

 limb muscles. 



With regard to Echidna^ no important paper on the myology of 

 this animal had appeared before 1866, when Mivart (14) wrote 

 his contribution. 



In 1855 Fewkes published his paper; but, as I have mentioned 

 above, I have not been able to see it, 



The most important work on the Echidna, however, is that 

 published in 1889 by Charlotte Westling (21), and, as far as I am 

 aware, this is the only paper on the myology of this animal in 

 which the nerve supply of the muscles is fully investigated. 



Leche (12) has followed Westling, for her work appears to have 

 been executed under his supervision. 



Besides these papers there are many isolated observations 

 scattered throughout numerous works, and in some instances I 

 have quoted these remarks in full. The most important of them 

 are by Furbringer (7), Humphry (11), Testut (18), Alix (18), 

 Smith (17), and Windle (23). 



With regard to the scapula and humerus, it is not my intention 

 to give a detailed account of these bones ; but as the surfaces and 

 borders of the scapula have received many different interpretations, 

 I will quote here the conclusions arrived at by Professor Wilson 



