44 PEOGRESS OP MICROSCOPICAL SCIENCE. ['jouruawin'!"iTi87o!' 



is illustrated by a number of beautifully executed plates by Lens 

 Aldous, and occui3ics about forty pages. The wliole anatomy, both 

 microscopic and general, and the zoology of the group are dealt with 

 minutely, and the paper will be well worth reading even by those 

 who do not make sponges a study. The subject is especially in- 

 teresting just now, because so many curious forms of sponge have 

 been taken up in the Atlantic expedition. The author strongly con- 

 demns the nomenclature proposed by Professor Wyville Thomson, and 

 makes the following remarks on the subject : — " Dr. Thomson, in his 

 highly imaginative paper ' On the Vitreous Sponges,' has not only 

 proposed a new and very imj)racticable order for their reception, but 

 he has also, contrary to all the established canons of nomenclature, 

 proposed to abrogate the established generic names of the working 

 natm-alists, who have preceded him in writing on the Siliceo-fibrous 

 sponges ; and after contrasting the differences of opinion very freely, 

 he at once proj^oses that they shall be all abolished, and his newly 

 concocted name Habrodidijon be established in their stead. If the 

 new name were illustrative of new ideas or of new facts, it might be 

 entitled to consideration, but as we find neither the one nor the other 

 in the learned Professor's j)aper, I do not think he can reasonably 

 expect that it will be adopted." 



The Investigation of the Lymphatics. — Dr. G. Schwalbe has a long 

 and important paper on this subject in Schultze's Archiv. He deals 

 especially with the Lymphatics of the eye. His remarks are especially 

 of import, because they show that Von Eecklinghausen's method of 

 using nitrate of silver has certain disadvantages as well as advantages. 

 His illustrations show how the staining process may lead us some- 

 times to incorrect inference. The paper occupies over sixty pages. — 

 Schultze's Archiv, Band 6, Heft 1. 



The Lateral Line in Fishes. — Herr Franz Schultz has published a 

 very elaborate memoir on this subject. He gives numerous excellent 

 illustrations, and traces out the connection between the organs of 

 the lateral line and the fine terminations of the nerves. He refers 

 to the labours of Dr. Robert MacDonnel, whose first paj^er in the 

 ' Transactions ' of the Royal Irish Academy our readers arc j)erhaps 

 already familiar with. — Schultze's Archiv, Band 7, Heft 1. Among 

 other papers in this journal, we may mention one by Herr J. Dogiel 

 " On the Dilator Pupilla) of Mammals and Birds ; " and by Dr. Mayer, 

 " On the Termination of the Nerves in the Salivary Glands," a propos 

 of Pfliiger's views. 



The Larval State of Euphausia is a pajoer of interest in Siebold and 

 Kolliker's Zeitschrift, by M. Metschnikow, of St. Petersburg. — Vide 

 S. and K., Zeitschrift, Band 19, Heft 4. 



Observations on the Itotifera. — In the above-mentioned journal will 

 be found a paper of great interest to microscopists " On the Wheel- 

 animalcules," by Dr. H, Grenacher, of Wiirzburg. It is accompanied 

 by some handsome figtires, and deals with Triarthra longiseta, 

 Floscularia prohoscidea, Microcodon clavus, and Brachionus ruhens. 



Tlie Anatomy of the Earth-worm. — M. Ed. Claparede communicates 



