■ 42 Memorias de la Sociedad Científica 



Origin o£ Speech (Am. Nat. XIX. p. 150, 1885). 



„ „ structural variations (New Occasions. Chicago II. p, 



273, 1894). 

 „ „ " the Fittest " (D. Appleton and Co, N. Y, Book 467, 

 pp, Nov. 1886). 

 Ornatissima, Phrynosoma, Ord (Pr. A, N. S. p, 305. 1872). 

 Ornithopsis o£ Seeley, Hullse on (Am. Nat, XIV. p. 142. 1880), 

 Ornithosaurians £rom Kansas, two new (Pr, A, P, S. XII, 88, 



p. 420, 1872). 

 Ornithotarsus immanis, New Dinosaur (Pr, A, P. S. XI. 81, p. 



117. 1869). 

 Orton exp, to Eouad. and up. Am. Rej). and Batrach, (Pr. A, 

 N. S. p, 96, 1868), 

 „ Prof, oollection o£ cold blooded Vertebrata o£ Perú, Sy- 



nop. (Pr. A. P. S, XVII, No. 100. p. 33, 1877), 

 „ Reptiles brought £r. np. and mid. Amazon and W. Pe- 

 rú (Jrn. A. N. S. (2). VIII, Pt, 11. Art. VI, p. 159. 1875), 

 Osborn and Scott's £auna o£ Brown's Park Eocene, Review 

 o£ (Am, Nat. XXIV. p. 470. 1890). 

 „ „ Loxolophodon and Uintatheriam, Notice of 



(Am. Nat. XV. p, 888. 1881). 

 „ „ WMte River mammalia, Review o£ (Am. 



Nat. XXI, p. 334. 1879), 

 „ Speir's descrip. o£ Loxolophodon cornutus (Am, 



Nat. XIII. p. 334. 1879). 

 „ Wortman, Remarks on Artiodac, from White Riv, 

 np. deser. by (Am.Nat. XXVII, p. 147. 1893), 

 'S "From the Greeks to Darwin" Rev. o£ (Am. Nat. 



XXIX, p. 829, 1894). 

 'S struc, and olassif, ofMesoz. Mammalia, Rev. (Am. 

 Nat. XXII. p. 723. 1888). 

 Osino Nev. Tertiary coal and fossils o£ (Pr, A, P, S. XII, 88, 



p, 478, 1872), 

 Ossicula auditus of BatracUa (Am. Nat. XXII. p. 464. 1888). 



