106 NOTICES OF SERIALS. 



(Oberbeck) On the stratification and false cleavage of the slate of Wissenbach ; 

 with three plates — p. 22-60. (Giebel) Dichelodus, a new genus of fish, in the 

 copper schist of Mansfeld ; with a plate— p. 121-127. (Same) Fossil Fauna of 

 the Lithographic slate of Solenhofen ; with two plates — p. 378-388. Two species 

 of Libel lulidae, Aeschna multicellulosa, and Calopteryx lithographica ; Buriarugosa, 

 a Crustacean intermediate in its characters between Idotea and Tanais ; and two 

 Holothuriae, Protholothuria annulata and armata. (Same) The fossil species of 

 the genus Capulus — p. 162-169. (Same) On Bornemann's discovery of the 

 Cretacean formation in Thuringia — p. 455. (Same) On the earthquake of the 

 1st of June, 1857, in Saxony and Thuringia — p. 438-443. (Chop) Teeth and 

 remains of fishes in the Keuper of Schlotheim ; additional notices, with a plate — 

 p. 127-132. (Stichler) Fossil flora of the Quader sandstone of Langenberg, near 

 Zwedlinburg — p. 452-455. CPurgold) Crystals and their origin — p. 277-299. 

 (Soechting) Paragenesis of white-lead, and of the Hydrocarbon ate of copper — p. 

 168. (Gross) On the arrangement of a Geological museum — p. 153-162. 

 Extracts from the Proceedings of the Royal Swedish Academy, &c. (Meves) 

 Fauna of Gothland— p. 459. ( Wahlberg) Bombi of the North— p. 132-136. 

 (Thomson) Swedish species of Omalium— p. 458. (Bohemann) Sexual union 

 between different species of insects — p. 300. (Zetterstedt) Botany of the Pyrenees 

 — p. 300-302. (Nillson) Ethnographical inferences from the antiquities exhumed 

 in Scandinavia — p. 60-65. 



Literary Notices. Zoology, eighty-nine. Botany, twenty-eight. Geology, 

 Mineralogy, and Paleontology, one hundred distinct articles. 



SlTZUNGSBERICHTE DER KAISERLICHEN AkADEMIE DER WlSSENSCHAFTEN. 



Proceedings of the Vienna Imperial Academy of Science. Math. 



Nat. History Class. 8vo. Vienna. 



Vol. XXII. Three Parts ; with Twenty -three Plates. 1856. 



(Jendrassik) Anatomical examination of the structure of the Glans Thymus ; 

 withaplate — p. 75-113. (Voigt) On a newly discovered system of lines on the surface 

 of the human body, and on the principal regions of ramification of the nerves of the 

 skin, and the mode of distribution of the nerves in these — p. 240-248. (Engel) 

 On the arrangement and development of feathers ; with five plates — p. 376-393. 

 The arrangement of the feathers is connected with the progress of segmentation 

 in the embryo, which precedes the development of the several parts, each of the 

 divisions formed on the surface of the body by these processes becoming clothed 

 with feathers independently of the others. In each division the development of 

 the capsules proceeds from the circumference towards the centre, the arrange- 

 ment of them following the outline more closely in proportion as they approach 

 to this boundary. The formation of a series of capsules commences with the 

 appearance of a thickened streak, which afterwards breaks up into divisions 

 corresponding to the number of feathers. In each pair of contiguous streaks the 

 roots are developed alternately, so that each capsule in one series is opposed to 

 the space between two in the next, giving rise to a great variety of complicated 

 geometrical figures. The feather appears, in the first instance, as a nearly 

 rounded collection of cells, which becomes divided subsequently into two spherical 

 masses. The superficial cells coalesce with one another both longitudinally and 

 transversely, so that the feather acquires a fibrous structure. The growth of the 

 feather takes place from the end by the development of a terminal bud which 

 forms a new one by transverse fission, and so on, till the end of the feather has 

 attained a certain degree of slenderness. Similar terminal buds then appear on 

 the separate vanes of each feather, and these, by continued transverse fission, 

 develope new terminal and lateral buds, which last constitute the bilateral fringe 

 of the individual vanes. In the course of these processes there is no formation 

 or repartition of cells in the ordinary sense of the term. (Frauenfeld) On the 

 genera Raymondia Fr., Strebla Wdm. and Brachytarsina Mcq. — p. 468-478. 

 A critique of Kolenati, who in his " Parasites of the Chiroptera" has referred the 

 genus Raymondia, proposed by Frauenfeld in the eighteenth volume of these 

 Proceedings, to Strebla Wdm., as Walker had previously done, in the Catalogue of 



