DE HlSTOlilA NATURAL. 175 



Essex InstiliiU, Saletn. Bnlletin, vo!, xx, números 1 á 12; 

 vol. XXI, números 1^6. 



— Charter and by-Iaws; witha list ofits officers andmemlers. 

 Salem, 1889. 



Foiidation da P. Teyler van der HuU a Earlem. — Archives 

 du Musée Teyler. Serie ii, t. xix, núm. 3; vul. iii. 6"'^ Partie, 

 Harlem 1891. 



K. K. Zoolofjisch ioianischen GeseUschaft. Wiea. — Ver/iand- 

 lungen, xl BJ. iv Quartal. December 1890. — xli BJ. 1891. 

 I, 11, III Quart. 



Museum of Comparatíve Zoology at Harvard College, Cam- 

 bridg-e Mass. — Annual Heportfor 1889-90. 



— Preliminary account of the fossil Mammals from the WJii¿e 

 River and Loup formaiions. Part. ii. Carnívora and AríiodactyJa^ 

 by W. B. Scott. — Perisodactyla, by H. F. Osborn. Carabridg-e 

 1890. (Bulletin, vol. xx, núm. 3.) 



— CristateVa: The origin and development of the individual in 

 the Colony, by C. B. Davenport. Cambridge 1890, (BuUetin, 

 vol. XX, núm. 4). 



— The eyes in ilind Cray üshes, by G. H. Parker, CambrUg-e 

 1890. (BuUetin, vol. xx, núm. 5). 



— The parietal eye in some lizards from the Western. Ü. S. 

 by W. E. Ritter. Cambridg-e, 1890. (Bulleiin, vol. xx, nú- 

 mero 8). 



— Contriluíions to the morphology of the Turlellaria. — I. On 

 the siructure of Phag-ocata g-racilis Leydy, by Woodworth. 

 Cambridg-e 1891. (BuUetin, vol. xxi, núm. 1). 



—The compound eyes in Críisíaceous, by G. H. Paiker. f BuUe- 

 tin, vol. XXI, núm. 2). 



— On some points in the Anatomy and Histology of Sipuncu- 

 lus nudus L. by H. B. Ward. Cambridg-e 1891. (BuUetin, vo- 

 lumen XXI, núm. 31. 



— The d^,vdopment of the Pronephros and segmental duct in 

 Amphibia, by H. H. Field. Cambridg-e 1S91. (BuUetin, volu- 

 men XXI, núm. 5). 



PhysihiHsch-meiicinischen Gesellschaft zw IVilrziurg. — 

 Sitzumgs-berichte, .Jabrg-aog- 1891. X. 1, 2, 3. 

 — Verhandlungeii. — Neíie Folge. Band. N. 3, 4, 5. 

 — Beitrag zur Kenntniss des Kieselschiefers von Dr. G. Grein, 

 in Darmstad (Verhandlungen^ N. F. xxiv B, núm. 7). 



