XXI — 



On the Birds obtained by Mr. G. C. Bourne on the Island of Diego Garcia, Chagos Group. — 

 Bland Sutton. On the Intervertebral Disk between the Odontoid Process and the Centrimi 

 of the Axis in Man. — Ramsay Wright. Note on an Ectoparasite of the Menobranch. — 

 Mathew. Descriptions of some new Species of Ehopalocera from the Solomon Islands. — 

 Bowdler Sharpe. Notes on some Birds from Perak. — Id. Notes on Specimens in the Hume 

 Collection of Birds. — Butler. On Lepidoptera collected by Major Yerbury in Western 

 India. — Sclater. List of a Collection of Birds from the Province of Tarapacà, Northern 

 Chili. — Smith Woodward. Note on the Presence of a Columella (Epipterygoid) in the 

 Skull oflchthyosaurus. — Di'uce. Descriptions of some new Species of Heterocera 

 from tropical Africa. — Boulenger. First Report on Àdditions to the Batrachian Collection 

 in the Naturai History Museuin. 



"i Records of the Geological Survey of India. Voi. XIX, 4. 1886. Calcutta. 



Medlicott. Note on the occurrence of petroleum in India. — Townsend. Beport on the 

 Petroleum Exploration at Khàtan. — King. Boring Exploration in the Chhattisgarh Coal- 

 fields. — Griesbach. Field-Notes from Afghanistan : (No. 3), Turkistàn. — Romani*. Ana- 

 lysis of Gold-dust from the Meza Valley, Upper Burina. 



+ Repertorium der Physik. Bd. XXII, 11. Miinchen-Leipzig, 1886. 



Weilirauch. Einfluss des Widerstandes auf die Pendelbewegung bei ablenkenden 

 Kraften, mit Anwendung auf das Foucault'sche Pendei. — Mùller. Ueber die elektro- 

 motorische Differenz und die Polarisation der Erdplatten. 



" ; " Report (Annual) of the curator of the Museum of Comparative Zoòlogy at 

 Harvard College, 1885-86. Cambridge. 



■ "Report (Animai) of the Secretary to the Board of Regents of the University 



of California. 1886. Sacramento. 

 ■^Résumé des séances de la Sociéfcé des ingénieurs civils. Séance du 19 nov. 



1886. Paris. 



"'Rerista de Ciencias históricas. T. IV, 5. Barcelona, 1886. 



de Bofarull y Sans. Felipe de Malia. — Segura. La Segarra. — de Taverner y de 

 Ardena. Historia de los Condes de Empurias y de Perelada. — Bosch de la Trinxeria. 

 Fiestas que celebro Barcelona en honor à Felipe V. — Van Eys. La Lengua basca. — 

 de Chìa. Epitafio de la urna funeraria de Odón, Opispo de Gerona. 



f Revista do Observatorio de Rio de Janeiro. Anno 1, 11. Rio de Janeiro, 1886. 

 +Revue intera ationale de l'électricité et de ses applications. N. 22, 23. Paris, 1886. 

 + Revue politique et littéraire. T. XXXVIII, n. 23-25. Paris, 1886. 

 + Revue scientifique. T. XXXVIII, n. 23-25. Paris, 1886. 

 * Science. Voi. Vili, 196-200. New York, 1886. 



f Transactions of the Manchester Geological Society. Voi. XIX, 1. Manchester, 

 1886. 



"Verhandlungen der Naturforschenden G-esellschaft in Basel. Th. Vili, 1. 

 Basel, 1886. 



Riggenbach. Beobachtungen iiber die Dammerung, insbesondere iiber das Purpurlicht 

 und seine Beziehungen zum Bishop'schen Sonnenring. — Kollmann. Ueber Furchung an 

 dem Selachier-Ei. -- Id. Die Geschichte des Primitivstreifens bei den Meroblastiern. — 

 Id. Rassenanatomie der europaischen Menschenschàdel. — Christ. Nachtrag zu der Ueber- 

 sicht der uni Basel gefundenen Tagfalter und Sphinges L. — Gilliéron. La faune des cou- 



