DE HISTOKIA NATURAL. 175 



Essex Institute, Salem. Bulletin, vol. xx, numeros 1 a 12; 

 vol. xxi, numeros 1 h 6. 



— Charter and by-lams; with a list of its officers and members. 

 Salem, 1889. 



Fondation de P. Teyler van der Hull a Harlem. — Archives 

 dw Musee Teyler. Serie n, t. xix, num. 3; vol. in, 6 me Partie, 

 Harlem 1891. 



K. K. Zoologisch botanischen Gfesellschaft. Wien. — Verhand- 

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

 i, n, in Quart. 



Museum of Comparative Zoology at Harvard College, Cam- 

 bridge Mass. — Annual Report for 1889-90. 



—Preliminary account of the fossil Mammals from the White 

 River and Loup formations. Part. n. Carnivora and Arliodactyla, 

 by W. B. Scott. — Perisodaclyla, by H. F. Osboro. Cambridge 

 1890. (Bulletin, vol. xx, num. 3.) 



— Cristatella: The origin and development of the individual in 

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

 vol. xx, num. 4). 



—The eyes in blind Cray fishes, by G. H. Parker. Cambridge 

 1890. (Bulletin, vol. xx, num. 5). 



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

 by W. E. Ritter. Cambridge, 1890. (Bulletin, vol. xx, nii- 

 mero 8). 



— Contributions to the morphology of the Turbellaria.—l. On 

 the structure of Phagocata gracilis Leydy, by Woodworth. 

 Cambridge 1891. (Bulletin, vol. xxi, num. 1). 



— The compound eyes in Cruslaceous, by G. H. Parker. (Bulle- 

 tin, vol. xxi, num. 2). 



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

 lus nudus L. by H. B. Ward. Cambridge 1891. (Bulletin, vo- 

 lumen xxi, num. 3). 



— The development of the Pronephros and segmental duct in 

 Amphibia, by H. H. Field. Cambridge 1891. (Bulletin, volu- 

 men xxi, num. 5). 



Physikalisch-medicinischen Gesellschaft zu Wilrzburg. — 

 Silzumgs-berichte, Jahrgang 1891. N. 1,2, 3. 



— Verhandlungen. — Neue Folge. Band. N. 3, 4, 5. 



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

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



