123 Royal Society : — 



name of the authority in every case. We commend this Appendix 

 as quite a model of how much information may be conveyed in a few 

 pages. 



A second Appendix supplies a complete and partly synonymic 

 catalogue of all the European Butterflies, amounting, as we said 

 before, to 321 species. In his estimate of the number of species 

 Mr. Kirby has wisely contented himself with following a good recent 

 authority — Staudinger. 



We must now leave the Butterflies of Europe in the hands of 

 Mr. Kirby and his fellow entomologists. We trust that enough has 

 been said to stimulate travellers to the contemplation, if not the 

 capture, of some of the 321 species. 



PROCEEDINGS OF LEARNED SOCIETIES. 



ROYAL SOCIETY. 



Nov. 20, 1862. — Major- General Sabine, President, in the Chair. 



"On the Fossil Remains of a long-tailed Bird (Archeopterj/x 

 maerurus, Ow.) from the Lithographic Slate of Solenhofen." By 

 Prof. Richard Owen, F.R.S. 



The author details the circumstances connected with the discovery 

 of the fossil remains, with the impressions of feathers, in the Litho- 

 graphic slates of Solenhofen, of the Oxfordian or Corallian stage of 

 the Oolitic period, and of the acquisition for the British Museum of 

 the specimen which forms the subject of his paper. 



The exposed parts of the skeleton are, — the lower portion of the 

 furculum ; part of the left os innominatum ; nineteen caudal vertebrse in 

 a consecutive series ; several ribs, or portions of ribs ; the two scapulae, 

 humeri, and antibrachial bones ; parts of the carpus and metacarpus, 

 with two unguiculate phalanges, probably belonging to the right 

 wing ; both femora and tibiae, and the bones of the right foot ; im- 

 pressions of the quill-feathers radiating fan-wise from each carpus, 

 and diverging in pairs from each side of the long and slender tail. 

 The above parts indicate the size of the winged and feathered creature 

 to have been about that of a rook. The several bones, with their 

 impressions and those of the feathers, are described, and the bones.are 

 compared with their homologues in different Birds and in Pterodac- 

 tyles. Whence it appears that, with the exception of the caudal 

 region of the vertebral column, and apparently of a biunguiculate 

 manus, with less confluent condition of the metacarpus, the preserved 

 parts of the skeleton of the feathered animal accord with the ornithic 

 modifications of the vertebrate skeleton. The main departure there- 

 from is in a part of that skeleton most subject to variety. Twenty 

 caudal vertebrse extend from the sacrum in a consecutive and naturally 

 articulated series, resembling in structure and proportions those of a 

 squirrel. The tail-feathers are in pairs corresponding in number with 

 the vertebrae, diverging therefrom at an angle of 45° backward, be- 



