32 NOTICES OF SERIALS. 



Helix translucida, dumont ; Bulinm tetrodon, cespitum; Clausilia huet, rupicola, 

 disjuncta. (Vogt) Siphonophora of the Mediterranean sea — p. 15-24. (Same) 

 Anatomy of Salpa— p. 226. (Moulinie) Embryogeny of Trematodea — p. 465. 

 (Michaud) On the relation between the botanical character of plants and the ter- 

 restrial and "atmospheric influences under which they grow — p. 471. (Thurey) 

 On the development of the leaves of plants, preceded by thoughts on the history of 

 vegetable Organogenesis — p. 25-3 1. (Same) Inquiry as to the absorption by plants 

 of water from the soil in a state of vapour— p. 106. (Same) The question, what is 

 Species in Botany— p. 207-223. (Same) On the origin of the stipules of Phyllo- 

 dendron — p. 108. (Same) Influence of vegetation on the formation of rocks at 

 the present period — p. 31. (Mortillet) Geological observations on^the coal mea- 

 sures of Pernantin Savoy— p. 101-106. (Same) On the vertical strata of Saleve 

 —p. 201. (Same) Discoveries made in the peat mosses of Savoy —p. 471. 



Vol. II. 1855. 

 (Theobald) Letter, on a fall of black snow at Coir, in the Orisons, in February, 

 1855— p. 293. The colour of the snow was owing to the presence of vast numbers 

 of a species of Podurellaa, of the genus Desoria, and, perhaps, not distinct from D. 

 glacialis Nicolet. (Vogt) Report on Gegenbaur's recent publications on the Ana- 

 tomy and Development of the Pteropoda and Heteropoda — p. 296. (Thury) On 

 the cause of the diseases which have affected so many plants of late years ; with re- 

 ference especially to the disease of the grape and the potato — p. 298-308. 



Vol. IV. 1856. 

 (Theobald) Influence of vegetation on the formation of recent rocks — p. 5-28. 

 (Thury) Plan of a new Flora of Switzerland— p. 28-62. 



Vol. III. contains no article Natural History. 



Bulletin de la Societe Vaudoise des Sciences Naturelles. Bulletin of 

 the Vaudois Society of the Natural Sciences.— 8vo., Lausanne. 

 Vol. IV., No. 33,37. A.D. 1855, 1856. 

 (Blanchet) On the production of light in glowworms— p. 430-437. (Chavannes) 

 On the silk-producing Saturnise, and their introduction into Europe as a branch 

 of industry— p. 325-333. Besides the common silkworm of the mulberry, Asia 

 produces many other kinds, the silk of which is of value for clothing, in parti- 

 cular S. atlas, cynthia, mylitta, pernyi, which will feed on the oak of Europe, 

 assameusis ; there are other Asiatic species probably worthy of attention also, 

 S. perroteti, selene, leto. In Africa more than thirty species are known, but the 

 cultivation of silk has not been pursued by its barbarous tribes. The most pro- 

 mising are S. cometes, mimosse, bauhinise, vacuna, paphia, cytherea. The South 

 American species, all of them distinguished by four hyaline spots on the wings, 

 S. aurora, ethra, speculum, augias, encelades, afford silk valuable both for quan- 

 tity and quality. Central America has S. orbigniana,and Cuba a species allied to 

 S. speculum. The North American species are S. promethea, cecropia, poly- 

 pheraus, luna. Australia has S. helena and janetta. The silk of the 

 European native kinds, S. spini, carpini, pruni, is so inferior, that they do not 

 deserve cultivation ; but there is little doubt that some of the Asiatic species 

 might be introduced with advantage, as the S. mori has been for many centuries. 

 (Same) Report on the first attempt at the introduction of S. mylitta, in Switzer- 

 land — p. 416-419. (Yersin) On the last moult of the Oithoptera : with figures — 

 p. 311-314. The wings afford a sure means of distinguishing the perfect state, 

 for even when merely rudimental, they present the fan-like folds in this stage, 

 which are wanting in the previous ones. (Same) Note on Xiphidium fuscum ; 

 with figures — p. 314 316. (DelaHarpe) Report on the returns concerning the 

 destruction of the caterpillar of the vine, within the canton, in 1856 — p. 284 296. 

 (Biiggs) On the first appearance and the spread of Anacharisahinastrum in 



