26 THE AMERICAN MUSEUM JOURNAL 
site, or antimonial silver, from the same famous locality, humite (a recent 
determination) from Franklin Furnace, N. J., with two really admirable 
menaccanites, in solid, well-developed and distorted crystals from Nor- 
way, embrace the most important purchases. 
An exchange of some interest was made with Prof. T. Wada of 
Japan for Japanese minerals and one with Mr. Otto F. Pfordte for 
Nipissing specimens of silver and silver ores. 
Mr. F. A. Canfield donated an excellent native lead from Sweden, 
and a characteristic chrysotile from the Grand Canyon of the Colorado 
was received from the Hance Asbestos Mining Co. A representation 
of the iron sulphates (copiapite, coquimbite, amarantite and others) 
from Atacama, Chile, was given by the distinguished collector and 
mineralogist, Mr. John H. Caswell, and through Prof. James Douglas 
there were received from Dr. L. D. Ricketts two sections of colored 
stalactites from Bisbee, Arizona. One of the superb amethyst-colored 
calcite crystals from Sterlingbush, St. Lawrence Co., N.Y., which formed 
a prominent feature in the mineralogical series at the Academy exhibi- 
tion already referred to has been received from Mr. H. P. Whitlock of 
Albany. 
Several additions have been made to the New York Mineralogical 
Club’s collection illustrating the mineralogy of Manhattan Island and to 
the Museum series showing the basement rocks underlying the city. 
L. P. GRATACAP. 
A MODEL OF THE LARGEST DIAMOND KNOWN. 
HERE has recently been placed on exhibition in the Hall of 
Mineralogy (Case 25, north end, east side) a natural-sized 
model in glass of the great Cullinan diamond which the Museum 
has received as a gift from the Premier Transvaal Diamond Mining 
Company, Limited, Johannesburg, South Africa. ‘The Cullinan Dia- 
mond has received its name in honor of the Chairman, or President, 
of the Premier Company in whose ground it was found. The stone 
was discovered by Mr. Wells, surface manager for the company, in the 
so-called ‘“‘yellow ground” some eighteen feet below the surface. Its 
net weight was 3,024? carats (1 pound, 6 ounces avoirdupois) which is 
more than three times the weight of the largest diamond previously known, 
