ANATOMY AND PHYSIOLOGY. 
45 
detailed account of the form, relations, minute anatomy, func- 
tions and development of the oil-gland in Birds is given. ) 
. Lewis, Grace Anna. Symmetrical Figures in Birds’ Feathers. 
■ Am. Nat. v. pp. 675-678, figs. 
(^On the form of certain granules contained in feathers ex- 
amined under the microscope.^ 
, Luhder, W. Zur Bildung des BrustlDcins und Schultengiirtels 
der Vogel. J. f. 0. 1871, pp. 321-353. 
The aim of this essay is to aid the search for a "Natural 
System ” of ornithology ; but it is rather wanting in practical 
results, thoughJUie varied structure of the sternal apparatus is 
earo^fully traced through the principal groups of birds. ^ 
y Marshall, W. Sur les plumes caudales allongees des Oiseaux 
de Paradis. Arch. Nderl. vi. pp. 396-304. [See " Para- 
disiidcB.^^] 
Milne-Edwards, a. B.echerches Anatomiques, etc. [See 
"General Subject.”] 
/Morse, E. S. On the Carpal and Tarsal Bones of Birds. Am. 
Nat. V. pp. 524, 525. 
/ Abstract of a paper read at the late meeting of the American 
Association. In the embryos of several birds the author has 
found three distinct tarsal bones, two proximal, answering to 
the tibia and fibula, and a distal one. The first two anchylose 
early, and then unite with the tibia, the third with the meta- 
tarsal. In the carpus he had found generally four ossicles (but 
in two species five), the distal ones uniting with the middle and 
outer metacarpals, the others remaining free, y 
Murie, J. On the Sternum and Viscera of Pell’s [^ic] Owl 
(Scotopelia 2^elij Temm.). [See Strif/idoi,] 
. On the Dermal and Visceral Structures of the Kagu, 
Sun-Bittern, and Boatbill. Tr. Z. S. vii. pp. 465-492, 
pis. lvi.,lvii. 
[ Gancroma has only one caecum, like the other Ardeidm ; Eury- 
pyga and Rhinochetus have two caeca.y 
. Additional Notice concerning the Powder-Downs of 
Rhinochetus jubaius, P. Z. S. 1871, pp. 647, 648. 
( On the nomenclature to be used for the various "patches” of 
powder-down. / 
/Newton, Alfred. On a remarkable Sexual Peculiarity in an 
Australian species of Duck. P. Z. S. 1871, pp. 649-651, 
figs. [See Anatidce^ 
Owen, R. OwDinornis. — (Part XI.) : containing a description 
