468 University Geological Survey of Kansas. 
kindly loaned for study by Messrs. Geo. L. English & Co., 
of New York city, to whom we are greatly indebted for this 
service. In addition to these, the crystals from a number 
of private cabinets, among them those of Col. J. V. Pierce, of 
Galena, Mr. James Roach, of Joplin, and Mr. W. G. Kane, 
of Kansas City, Mo., were examined. The crystals of type 
24 are in the Egleston Mineralogical Museum, of Columbia 
University. Thanks are due to Prof. A. J. Moses, of that in- 
stitution, for opportunity to study the crystals. 
CRYSTALLOGRAPHY. 
Table I, following, gives a list of all forms observed on the 
calcite crystals of the district. Goldschmidt’s letters, as given 
in his ‘‘Index der Krystallformen der Mineralien,’’ are used 
in the designation of the forms. Letters for new and uncer- 
tain forms are chosen in accordance with Goldschmidt’s tables 
on page 141 of the above-mentioned work. ‘These letters are 
used in the tables and descriptions following. In the column 
marked ‘‘Dana’’ are contained the letters used in the sixth 
edition of the System of Mineralogy, 1892, for such forms as 
are given in that work. The symbols of Bravais-Miller and 
Naumann follow in the next columns. 
All forms given were observed by the author, except where 
noted in the column headed ‘‘ Remarks,’’ which also contains 
the name of Farrington when he was the first to describe the 
form, 
