1514 Journal of Applied Microscopy 



euwirth, V. Titanit von der Hiittellehne Asparagus greei 

 bei Wermsdorf un Miihren. Tschermak's ^ ,, , • , • • 



Min. u. petrog. Mitth. 20: 178-1S0, 1901. Crystallographic description. 



Martin, Fr. Ueber Scheinbar spaltbaren Quarz Quartz kernels from an old wall are 

 von Karlsbad. Tschermak's Min. u. petrog. . , . -^^ . . ^ 



Mitth. 20: 80-S2, 1900. imperfect crystals. Under action of 



frost certain liquid inclusions which 



are arranged parallel R, go P and sometimes o P, have produced apparent 



cleavages. a, j. m. 



Erben, F., and Ceipek, L. Analyse des Albits Leading to formula Ab^, 5 An,, 

 von Amelia. Tschermak's Min. u. petrog. 

 Mitth. 20: 85, 1900. A. J. M. 



Judd, Hidden, and Pratt. On a New Mode of The specimens are almost similar in 

 Occurence of Ruby in North Carolina. , , , , r 1 



Min. Mag. 12: 139,1899. beauty and color to those from the 



Mogok district of Burma, and certain 



garnet (rhodolite)-bearing basic rocks at Cowee-Creek, the ruby having probably 



crystallized out from the basic fluid magma. The " non-gem " corundum occurs 



in ordinary crystalline schists, or in peridotites. 



The rubies frequently contain inclusions of various kinds, and the clearest 

 crystals almost always show the tabular habit, regarded by Lagoria as charac- 

 teristic of those separating from an igneous magma. 



A pseudomorphous change by hydration is very common, as in the case of 

 the Burma rubies, and it is hoped that more investigation will bring to light the 

 similarity in rock magma producing the Burma and North Carolina rubies. 



L. McI. L. 



Pratt, J. H. On the Crystallography of the The Cowee Valley crystals have two 

 Rubies from Macon Co., N. C. Min. Mag. , , ,. 



12:150,1899. general habits : 



(1) Flat tabular, a combination of base and unit rhombohedron. 



(2) Prism a (1120), prominently developed with base, the prism being 

 either short or long. Pyramidal faces ;/ (2243) sometimes show. 



Basal planes are striated, or show repeated growth of unit R and base. 

 Similarity in development is noted between these rubies and the corundums 

 from Yogo Gulch, Mont., and the Burma district. l Mci. l. 



MEDICAL NOTES. 



Blood Examination. — The following method for the preparation of speci- 

 mens for the examination of blood is given by Dr. W. L. Braddon, of the Malay 

 Peninsula : The mounts may be made either between two square cover-glasses, 

 or a square cover-glass and a regular size slide. The covers and slides are first 

 sterilized by a method recommended by Parker and Howard ; viz., drop, one by 

 one, into a 10 per cent, solution of chromic acid, contained in an enamelled iron 

 dish, and boil for twenty minutes. They are then poured, altogether, into a 



