GERMANY. 107 



the Diptera of the British Museum, with a species of the same group, Strebla 

 africana. The distinctions seem abundantly sufficient in these instances to for- 

 bid such a reunion ; but it is not so clear that Raymondia is not identical with 

 Brachytarsina Mcq., as Loew thinks, notwithstanding the discrepancies in the 

 figure and description given by Macquart, Dipteres Exotiques Supplement IV., 

 which Frauenfeld has here drawn attention to. A new species, R. diversa, cha- 

 racterized from a single specimen, is remarkable for an irregularity of the vena- 

 tion, which, although symmetrical in both wings, is probably a monstrosity. 

 (Same) Contributions to the Natural History of Trypeta, with descriptions of 

 some new species ; with a plate — p. 523-557. Fifty-nine species are enumerated 

 as inhabiting plants of the order Composite, while only nine are known as at- 

 tached to plants of other orders. The new species described are T. affinis, amoena, 

 eggeri, intermedia, mamulce, maura, schcefferi, European ; and two from Egypt and 

 Arabia, T. cony zee and augur. (Loew, F.) Description of the larva of Nebria picicor- 

 nis, and general characters of the larvae of this genus ; with a plate — p. 298-306. 

 (Frauenfeld) On the Paludinae of the group P. viridis Poir. ; with a plate — p. 

 569-578. (Unger) On the ducts which contain the milky juice in Alisma 

 plantago— p. 169. (Ettinghausen) On the venation of the leaves in theCelas- 

 trineae — p. 269-271. (Perger) The German names of native plants ; the orders 

 Ranunculaceae, Papaveraceae, Cruciferae, and Solaneae — p. 559. The three pre- 

 ceding essays will appear in full in the Transactions. (Wertheim) On a new 

 alkaloid in Conium maculatum — p. 113-121. (Steer) On the preparation of 

 Gallic acid— p. 249. (Bohm) Studies of Chlorophyll— p. 479-512. (Roch- 

 leder) Note on the Tannin of galls — p. 558. (Pohl) Heliotypy an instrument 

 for the study of the Venation in the leaves and blossoms of plants, and for the 

 detection of Adulteration in certain drugs and groceries — p. 291-297. (Schmidt) 

 The Baradla cave near Agtelek, and the Ice cave of Lednica near Szilitz, in 

 Hungary— p. 579-621. (Boue) On the Geological maps of Europe, and on 

 Geological maps in general — p. 561-568. (Lorenz) On the origin of the Coal 

 bed of Hausruck ; with two plates — p. 660-672. (Boue) On Ptschelar's Hydro- 

 graphic map of the Circle of Kraina in Servia; Belgrade, 1856 — p. 673-691. 

 (Unger) On the fossil plants of the fluviatile Limestone and Quartz ; and Studies 

 of the Leitha limestone, its vegetable contents and mode of formation ; — Extracts 

 from two essays to be inserted in the Transactions — p. 697-700. (Reuss) Frag- 

 ments concerning the genesis of Minerals — p. 129-210. (Haidinger) Kenn- 

 gottite, a mineral species from Felsobanya in Hungary — p. 236-239. (Bauer) 

 Analysis of Kaolin from Zettlitz in Bohemia — p. 693-696. (Pohl) Analysis of 

 Bittern from the Saltern of Piran — p. 122-128. (Hauer) Analysis of the 

 mineral water of Stubitza in Croatia— p. 307-316. (Partscb) On the Black 

 stone of the Kaaba in Mecca— p. 393. 



Abhandlungen der Naturforschenden Gesellschaft zu Halle. Trans- 

 actions of the Society of Naturalists of Halle. 4to. Halle, 

 Vol. IV. Part I. 

 (Gegenbaur) On the development of Sagitta; with a plate— p. 1-18. The 

 observations were made on S. bipunctata, and a smaller species, out of three dis- 

 tinct species which occur about Messina. The substance of them has been 

 already given in Siebold and Kcelliker's journal of Scientific Zoology, Vol. V. 

 They are so completely at variance with Darwin's observations on the supposed 

 spawn of Sagitta, that the author concludes that this was in reality the spawn of 

 some fish. The most noticeable points are as follows :— The division of the yolk 

 produces long pyramidal cells having their base at the surface and the apex to- 

 wards the centre, which retain this form even after the formation of the embryo 

 has commenced. The origin of the intestinal canal is contemporaneous with the 

 division of the yolk ; and it appears at first as a central cavity of the yolk, the 

 communication with the exterior being established at a later period. The de- 

 velopment from the egg is completed without any metamorphosis, not even cilia 

 being produced on the surface of the embryo. Hence the type of development 

 appears to be totally different from that of Mollusca, the embryo being formed 



