1144 Journal of Applied Microscopy 



by the fresh blood as they are in a control test when they are taken directly from 

 bouillon. To determine whether the bacilli could adapt themselves to the 

 alexins in the active blood, Trommsdorff cultivated the organism in fresh blood. 

 After being cultivated in this active blood for a time, they were transferred to 

 fresh active blood, and were found to suffer no diminution in numbers. He 

 found, further, that organisms thus adapted to the alexins of the ordinary blood 

 are checked in their growth if transferred to a pleuralexuadite which has the 

 alexins present in larger quantities than ordinary blood. He concluded, there- 

 fore, that bacilli quickly adapt themselves to the alexins in the blood. 



H. w. c. 



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. 



Friedel, 0. Nouveaux essais sur les Zeolites JSfatroUte (Mesofvpe). Author treats of 

 (Suite i). Bull. Soc. Min. 22: 84, 1899. ^ . ^-^ / 



the manner in which water is expelled 



during heating, and gives a plate showing dehydration curves. Concludes that 



all the water of natrolite is of the same nature (" zeolitic "). l. mcI. l. 



Pratt, J. H. On the Separation of Alumina Author treats of the differentiation of 

 from Molten Magmas, and the Formation of . tit 



Corundum. Am Jour. Sci. iv, 8 : 227, 1899. igneous magmas upon cooling, and of 



the genesis of minerals. The separa- 

 tion of corundum from molten magmas is " dependent upon the composition of 

 the chemical compounds that are the basis of the magma ; upon the oxides that 

 are dissolved with the alumina in the magma, and upon the amount of alumina 



itself." L. McI. L. 



Ward, H. L. New Meteorite from Murphy, Neuman lines noted, also the presence 

 Cherokee Co., N. C. Am. Jour. Sci. iv. 8: ^f troilite and daubreelite. 

 22 s, 1009. 



^ ^^ L. McI. L. 



INDIVIDUAL SPECIES. 



Calcites (Siliceous) from the Bad Lands, Wash- The specimens resemble in character 

 ington Co., So. Dakota. S. L. Penfield and , t-. • i 1 i- ^ j 



W E.Ford. Am. Jour. Sci. iv. 9: 352, 1900. the Fountainbleau limestone, and are 



gray in color. They consist of about 

 40 per cent, of calcite, enclosing 60 per cent, of quartz sand. The crystals occur 

 singly, but more often in groups, and evidently have formed in a stratified deposit 

 of sand, representing a phase of sand cementation with the crystalline form of 

 the calcite preserved. The crystal forms are steep hexagonal pyramids of the 

 second order (rare in calcite), which are somewhat barrel-shaped, with rounded 

 ends. The Fountainbleau crystals show the acute rhombohedron /(0221). 



L. McI. L. 



