Bibliographical Notices. 485 



the Spinal Marrow, especially on the nervous circulation observed 

 therein, by J. Van Deen. — On the genus Voyria, by F. L. Split- 

 gerber ; the new species described are, V. clavata, V. nuda, V. auran- 

 tiaca and V. corymbosa. — H. C. Van Hall on the formation and de- 

 velopment of the Seed of Crinum capense. — Micrometrical determi- 

 nations and Microscopical notices, by P. Harting. — On an extraor- 

 dinary anomaly observed in the metamorphosis of the Silk-worm, 

 by J. J. Bruinsma. — Some historical notices respecting Butterflies 

 with caterpillar heads, by J. Van der Hoeven. — Description of new 

 or little-known Lepidoptera, by J. Van der Hoeven. — Notices of 

 Works : Dr. S. Kutorga against the Successive Origin of Organic 

 Beings on the Earth ; Schumacher on the Nerves of the Jaws and 

 Gums ; Brandt's Contributions to our knowledge of the natural hi- 

 story of Birds ; Lichtenstein on the genus Mephitis ; De Vriese, Re- 

 port on the recent researches respecting the Specific Heat of Vege- 

 tables. 



Nos. 3 and 4. — Nova genera et species Plantarum Flora Java- 

 nicse auctore Fr. Junghuhnio, pugillus primus. — On the normal and 

 abnormal pitcher form of Leaves, by Dr. J. F. Hoffmann. — On Worms 

 occurring in the Eyes of certain Animals and of Man ; with a de- 

 scription of a hitherto undescribed Worm taken from the eye of a 

 Horse, by Dr. A. Numan. — Enumeratio Filicum et Lycopodiacearum 

 quas in Surinamo legit F. L. Splitgerber. — On the natural history of 

 the Isle of Rottum, by Dr. L. A. Cohen. — Vrolijk and De Vriese on 

 the change which the surrounding vapour undergoes during the de- 

 velopment of increased temperature in the spadix of Colocasia odora. 

 — Notices of Works : Dr. Henle on the comparative anatomy of the 

 Larynx, especially of Reptilia ; Dr. K. E. von Baer on the former dis- 

 tribution and entire annihilation of the Northern Sea-Cow (Rytina, 

 111.), met with by Steller in 1 745 on the coast of Behring Island, then 

 just discovered, and which has been no more seen since 1768; De 

 Symmetria et Asymmetria Organorum Animalitatis, imprimis Cranii, 

 a Dr. C. G. Lucse ; Dr. F. Miescher's description and examination of 

 Monostoma bijugum ; Schegel's Amphibia, 4th Decade ; Bischoff on 

 Lepidosiren paradoxa, and Owen's description of Lepidosiren annec- 

 tens ; Dr. G. Kunze's Supplement to Schkuhr's Ferns. 



Part VIII. Nos. 1 and 2. — Enumeratio Plantarum Zeelandiae Bel- 

 gicse indigenarum, auctore Dr. R. B. Van den Bosch. — J. N. Ramaer 

 on the Intestinal Papillae. — Contributions to the knowledge of the 

 Mouth Parts of some Hymenopterous Insects, by Dr. A. Brants. — 

 On the Polypidoms found at Groningen in the Hondsrug, by Dr. 

 Dassen — Examination of a Foot with seven Toes, by Dr. Luyten. — 

 Contributions to the Morphology of Bulbs, by W. H. De Vriese. — 

 Observations respecting the first formation of Cells and their Nu- 

 clei in Vegetables and Animals, founded on the investigation of 

 Inorganic Precipitates, by P. Harting. — Notices of Works, fyc. : 

 Reminiscences of Fr. J. F. Meyen, by W. H. De Vriese ; Histoire 

 d'un petit Crustacee (Artemia salina), by N. Joli; Fossil Remains 

 of an Ape and some other Mammalia from Greece, by Dr. A. 



