NOTICES OF SERIALS. 
53 
p. 208-213. Spatangus purpureus (Tornaria) forms the main subjeet of this 
article. (Leydig) Remarks on the structure of Hydras; with figures—p. 270- 
283. (Same) Brief communications on the Histology of animals; with two 
plates—p. 296-368. (Same) Zoological Notes; with a plate—p. 284-295. 
Illustrating the following Turbellarise; Stenostomum coluber Ldg. ; Catenula 
lemnce Duj. (referred to the Bothriocephala by Dujardin), Monocelis bipunctata 
Ldg., Planaria gonocephala Duj. (P. cornuta Oersted?), Proirhynchus fluviatilis 
Ldg., a freshwater Nemertid;—and Nematodea ; Oncholaemus rivalis , echini Ldg. ; 
Enoplys tridentata Duj. (Mayer) On spontaneous motion of the muscular fibres 
in the lower classes of animals—p. 214-219. (Muller) On the channel in the eggs 
of Holothurise—p. 60-68. (Same) Various forms of marine animals; with 
three plates—p. 69-98. These observations regard the larvas of Pteropoda and 
Planariae; Pilidium , Actinotrocha , Mitraria , Brachiolaria , &c. (Schmidt) 
On the development of Cyclas calyculata Drapiez; with a plate—p. 428-438. 
(Schneider) Contributions to the Natural History of the Infusoria ; with a plate— 
p. 191-207. Polytoma uvella is the chief subject. The following also are noticed, 
Chlorogonium euchlorum; Chilomonas paramecium; the phenomenon of encyst- 
ment observed also in Stylonychia punctulata , Euplotus charon , Pontotrichum 
hagenella , Diffiugia enchelys. Report (by Reichert) on the Progress of 
Microscopical Anatomy during the year 1853—pp. 80. 
Vol. for 1855 ; with twenty plates. 
General Physiology, etc. (Fick) On the form of the Stethoscope ; with 
figures—p. 32, 33. (Schulz-Schulzenstein) On Spontaneous motion of the 
muscular fibres — p. 265-268. Human and Comparative. (Bergmann) Notes 
on the Anatomy of man and animals—p.337-356. (Busch) Histology of the 
Kidneys ; with a plate—p. 363-375. (Luschka) On the development of the 
joints; with a plate—p.481-488. (Retzius) On the skull of a Pampas Indian 
p. 498-503. (Schlossberger) Chemical conditions of the foetal life—p. 504-511. 
(Wundt) Influence of the section of the Pneumato-gastric nerves on the organs of 
respiration—p. 269-313. Vertebrate. (Haeckel) On the eggs of Scombe- 
resox ; with two plates—p. 23-31. (Leydig) The posterior sclerotic ring of the 
eye of birds ; with figures—p. 40-46. (Retzius) On the large drops of grease in 
the eggs of fishes—p. 34-39. An extract from the Proceedings of the Swedish 
Academy of Science for the year 1854. Invertebrate. (Busch) Anatomy 
of the Trichodina; with a plate—p.357-362. (Krohn) On the offshoots of Auto- 
lytus prolifer Grube, ( Nereis prolifer a Muller)—p. 489, 490. (Same) On the 
early stages of growth of Pelagia noctiluca ; with a plate—p. 491-497. (Leydig) 
Cyclas cornea Lam., its anatomy and development; with figures—p. 47-66. 
(Same) On the minute structure of the Arthropoda; with four plates—p. 376- 
480. (Leuckart) On the Micropyle, and the minute structure of the shell of 
insects’ eggs; with five plates—p. 90-264. (Lieberkuehn) Contributions to the 
Anatomy of the Nematodea; with two plates—p. 314-336. Observations on 
Spiroptera inflata f Mehlis, a species from the crop of seabirds. (Mueller) On 
the advanced development of Mesotrocha sexoculata; with a plate—p. 1-12. 
Showing it to be the larva of Chaetopterus norvegicus. (Same) On Sacconereis 
helgolandica ; with two plates—p.13-22. (Same) Continuation of Observations 
on the metamorphosis of the Echinodermata—p. 67-89. The following Echinodea 
are illustrated ; Ophiura ; Bipinnaria ; and Brachiolaria, a new species. 
The sixth and concluding part of this volume, which should contain the Report 
on the Progress of Microscopic Anatomy during the year 1854, has not yet come 
to hand. 
Zeitschrift der Deutschen Geologischen Gesellschuft. Journal 
of the German Geological Society. 8vo. Berlin. 
Vol. IV. Part 4. 1854. 
(Beyrich) Shells of the Tertiary mountain system of Northern Germany. 
Part 3. Tritonium, Murex, Tiphys, Spirilla, Leiostoma, Pyrula; with four 
plates—p. 726-781. (Fraas) Squatina acanthoderma , the fossil Skate of Nus- 
plingen; with three plates—p. 782-799. (Mueller) The Alum-ore of the Ter¬ 
tiary formation; with a plate—p, 707-724. (Noeggerath) On Native lead, 
