74 



QUARTl^RLY CHRONICLE OF MICROSCOPICAL 

 SCIENCE. 



Histology — Neiv Handbook of Histology. — Dr. Strieker, of 

 Vienna, has secured the co-operation of a number of the 

 most distinguished histologists of Germany in the prepara- 

 tion of a work on the tissues of mau^ which will be the most 

 complete and trustworthy statement of the views of the lead- 

 ing German school that can be obtained. Two parts of the 

 work have already been received in England, containing 

 chapters by Max Schultze on nerve-tissue, by Stricke on 

 microscopical methods, by Kuhne on nerve and muscle, by 

 Pfluger on the salivary glands, by Rollet on blood-cor- 

 puscles, by Waldeyer on teeth, &c. &c. Numerous well- 

 executed woodcuts illustrate the work, which is by no means 

 an expensive one. 



Nerve. — Strieker's Handbuch der Lehre von den Geweben, 

 1868, Cap. III. Dr. Arndt, Schwalbe, and Koschennikof, in 

 recent numbers of Maa? Schultze' s Archiv. Grandry in the 

 Journal de V Anatomie et de la Physiologie, 1869, p. 219, &c. — 

 A number of recent papers on the structure of nerve-elements, 

 of which the above are some, and whose appearance, together 

 with others we have duly chronicled, is reviewed by M. 

 Claparede in No. 141 of the 'Archives des Sciences.^ M. 

 Claparedc observes that this remarkable series of works tends 

 profoundly to modify our ideas on the intimate structure of 

 the elements of the nervous system. 



The results of these new researches are set forth in the 

 most decided manner in the contributions furnished by M. 

 Max Schultze to the treatise of histology which is now being 

 published under the direction of M. Strieker. According to 

 the concordant results of these divers researches, the consti- 

 tuent elements of nervous fibres arc pri7nitive fibrillce, very 

 fine filaments, recognisable only by the aid of at least 800- 

 diametcr magnifying power. By their aggregation these 

 primary fibrillae form the bundles known till now under the 

 name of naked axial cylinders. 



These strands or bundles can become surrounded with a 

 medullary tunic and with a tunic of Schwann, so as to con- 

 stitute the nervous fibres known to everybody. 



