Journal of Applied Microscopy. 619 



indifferent zone. Observations support the view that there is a mingling in the 

 medulla of tracts of the auditory nerve extending caudad into the spinal cord, so 

 that each auditory nerve has fibers from both sides. 



From combined operations it appears that the cerebellum affects correlated 

 motion, but this is not apparent when the cerebellum alone is removed. Five 

 specimens in which the cerebellum was extirpated, and one or both auditories 

 cut, or the medulla partly cut across back of the Vagus, held their pectoral 

 fins, under strong tonus, in a position perpendicular to the axis of the body. 



E. M. B. 



RECENT LITERATURE. 



Kirchoff. Recent Views as to the Topical Wundt, W. Zur Theorie des Gefiilils. Phil. 



Basis of Mental Disorders. Am. Jour. Studien, IS: heft 2, 1899. 



Insan. 55: 481-495. 1898-9. Poirier, P. et Charpy, A. Traite d'Anatomie 



Havet, J. L'etat moniliforme des neurones humaine. Vol. Ill Systeme nerveux, Fas- 



chez les Invertebres. La Cellule, 16: fasc. cile3{fin): Les nerfs. pp. 747-1233, 205 figs., 



I, 1899. Paris, 1899. 



«; -J • 1. I- ^ . • J .1 Burvliet, J. van. Noyau d' origine der nerf. 



Weidenreich, F Zur anatomie der centralen oculo-moteur commun du Lapin. Limites, 



Kleinhime der Sauger Zeits. f. Morph. u. structure et localisations. 



Anthropol, I : heft 2, 1899. 



Brandes, G. Die Leuchtorgane der Tiefsee- 



Schultze, L. S. Die Regeneration des Gang- fische Argyropelecus u. Chauliodus. Zeits. 



lions von Ciona intestinolis L. u. liber das f Naturwiss 71: heft 6 1899. 



Verhaltniss der Regeneration u Knospung p^,^ p^ ^^^^^ ^.^ g^^^^^^ ;j^^ Chiasma 



zur Keimbaltterlehre. Jen. Zeits. f. Natur- ^. u • a u-u- t 



11 /^T T- ii:> u r. o nervorum opticorum bei Amphibien. Jen. 



wiss. 33 (N. F. Zo): heft 2, 1099 ^ .^ r -nt ^ • 53 i-kt tt- tt.\ . u i.. ^ 



^ ' ' vy . Zeits. f. Naturwiss, 33 (N. F. Zo) : heft 2, 



NOTES ON RECENT MINERALOGICAL 

 LITERATURE. 



Alfred J. Moses and Lea McI. Luquer. 



Books and reprints for review should be sent to Alfred J. Moses, Columbia University, 



New York, N. Y. 



Gramont, A. de. Analyse spectral des mineraux A very exhaustive treatise on the sub- 

 non conducteurs, par les sels fondus. Bull. ■ ^ n^i ^ 1 ^ • 1 1 ^1 



Soc.Min. 21: 94-130, 1898. ject- The spectrum obtamed by the 



action of an electric spark upon the 

 melted salt, supported on the flattened end of a thick platinum wire. This 

 method generally gives better diagnostic results than with either blow^pipe or 

 wet analysis. Two to three parts salt used to one of the mineral. Carbonate 

 of lithium used as flux, lithium giving a very simple spectrum and having other 

 advantages. Apparatus for producing spark, and spectroscope, described in 

 detail. Spectra of the different elements and common minerals given. Most of 

 the simple bodies give satisfactory results, but these are, however, defective or in- 

 sufficient for the iron minerals, fluorite and boron. In cases of mixtures of many 

 elements the " condensation " can be diminished, thereby getting only the 

 spectra of the metals. l. McI. l. 



