700 RECORD OF CURRENT RESEARCHES RELATING TO 



circumstances which may favour or hinder the introduction of the 

 parasite into the sheep.* (Classen prize, value 600 crowns.) 



Klein and Smith's Atlas of Histology.— This work (in 4to) is 

 intended to be a pictorial and literal representation of the structure of 

 the tissues of man and other Vertebrates ; its chief aim being to teach, 

 not so much the history of histology as histology itself in its modern 

 aspect. 



The plates are the work of Mr. Noble Smith and the text is by 

 Dr. Klein. Both are excellent — the plates accurate and effective, the 

 text clear and judiciously concise, and comprising besides the expla- 

 nations of the illustrations a good deal of other matter. 



The subject-matter will be treated in this order ; first, the elemen- 

 tary tissues^ — blood, epithelium and endothelium, connective tissues, 

 muscular tissue, the nervous, vascular and lymphatic systems ; then 

 a short chapter on " cells in general," after which the compound 

 tissues will be considered seriatim ; the alimentary canal and its 

 glands, the respiratory organs, the urinary and genital organs, the 

 skin and special sense organs. The concluding chapter will treat of 

 organs, the nature of which is not sufficiently well known, as the 

 suprarenal capsule, the thyroid and coccygeal gland. 



B. INVERTEBRATA. 



Fauna of Kerguelen's Land.f — The following are the chief con- 

 clusions to which Studer is led by his elaborate study of the fauna 

 of Kerguelen's Land. 



The fauna is similar to that of the other antarctic regions ; it has 

 numerous analogies with the arctic region ; its most striking pecu- 

 liarities belong to the terrestrial fauna, for of the marine genera only 

 four are peculiar to it, while the other genera are found in New 

 Zealand and Tierra del Fuego. It seems, indeed, that the southern 

 point of America, the Falkland Islands, South Georgia, Prince 

 Edward's Island, the Crozets, and Kerguelen must have been con- 

 nected in earlier geological periods, and the great age of Kerguelen is 

 spoken to by the characters of its geological formation. 



Deep-water Fauna of the Lake of Geneva. + — The fifth series of 

 these interesting observations by Professor du Plessis commences with 

 a note on the chemical characters of the mud of the lake, which, 

 taken from three different stations, present some slight differences, but 

 not such as to give any importance to the variations. As to the 

 water, it is shown that there is no sensible difference in the amount 

 of the solid matters dissolved in it at different levels ; as to the gases, 

 there is no great difference in their absolute amount, but, just as in 

 the waters of the ocean, oxygen is greatly deficient and carbonic acid 

 greatly in excess at great depths. 



Professor du Plessis describes four Tiirbellaria, all of which are 

 new to the fauna, and one of which is the representative of a new 

 species — Vortex intermedius. Turning to the Infusoria heterotricha, 



* Cf. loc. cit., p. 30 (p. 6.) t ' Aicli. Natui-cr.,' xlv. (1879) p. 140. 



X ' Bull. Sop. Vanrl.,' xvi. (1879) p. 149. 



