Ornithological Literature of 1871. 421 



Cox, T. 



First Annual Report of the Geological Survey of Indiana. 

 Indianapolis : 1869. 8vo, pp. 240. 



Contains a list of the birds of Franklin County, Indiana, 



with a few notes appended to each species by Rufus Hammond, 



State Geologist. 



Cunningham, Robert. 



1. Notes on the Natural History of the Straits of Magellan 

 and West Coast of Patagonia, made during the voyage of 

 U.M.S. 'Nassau' in the 7/ears 1866, 1867, 1868, 1869. 

 Edinburgh : 1870. 8vo, pp. 517. 



Notes on the birds observed are scattered throughout the 

 pages of this work. See the lists which have already appeared 

 in this Journal. (Ibis, 1868, p. 183, 1869, p. 283, and 1870, 

 p. 499.) 



2. Notes on some points in the Osteology of Rhea americana 

 and Rhea darwini. P. Z. S. 1871, pp. 10.5-110, t. vi., vi.a. 



Shows several structural differences between these two species. 



3. On some points in the Anatomy of the Steamer Duck 

 (Micropterus cinereus). Trans. Zool. Soc. vii. pp. 493- 

 501, plates Iviii-lxii. 



The osseous structure of this species is carefully investigated 

 in this papei', as well as some of the internal organs — the tongue, 

 trachea, and stomach being also figured. 



Darwin, Charles. 



The Descent of Man, and selection in relation to Sex. 2 vols. 

 London : 1871 . Post 8vo. 



Four chapters of the second volume of this remarkable work 

 are devoted to birds and the wonderful diversity displayed in 

 the structure, coloration, and habits of the sexes in this group 

 of animals, or what Mr. Darwin calls secondary sexual characters. 

 The necessarily brief limits of this notice do not permit us to enter 

 into a consideration of any of the details brought forward by 

 Mr. Darwin ; suffice it to say that, whether we agree witli his 

 conclusions or not, a wide field of observation is here pointed out 

 to ornithologists, the pursuit of which cannot but enlarge our 

 knowledge of our special subject and increase its general interest. 



