REPORT OF THE SECRETARY: NATIONAL MUSEXJM 109 



crystal of pink and green tourmaline from Madagascar; and 2 large 

 loose crystals of the rare silicate euclase from Brazil. Through the 

 interest of Gilbert LaBine, discoverer of the rich radium deposits at 

 Great Bear Lake, Canada, a 75-pound mass of the radium ore pitch- 

 blende, crusted with colorful alteration products, and a rich mass of 

 native silver from the same locality, were added. 



Several fine-cut gems were acquired through the Roebling fund, 

 including a rare Brazilian rose-red topaz of 18 carats, a Madagascar 

 ruby tourmaline of 30 carats, a flawless Brazilian pink tourmaline of 

 62 carats, and an unusual pink amethyst of 49 carats. 



To the Canfield collection through the Canfield fund came 13 

 accessions totaling 235 specimens. The outstanding one comprises 

 three masses of crystallized gold from Breckenridge, Colo., the largest 

 being a slab of fine mossy leaf gold weighing 22. G troy ounces. A 

 large group of brilliant azurite crystals from Aranzazu, Zacatecas, 

 Mexico, was obtained through the interest of Samuel Sokobin, 

 American consul at Saltillo, Coahuila. Other notable specimens are 

 a group of azurite crystals; a crystal of cerussite from Tsumeb, 

 Southwest Africa; the copper oxj^chloride atacamite from Chile; a rare 

 phosphate of iron, strengite, and the phosphate of lead, pyromorphite, 

 in unusually large crystals, both from Germany; a group of large and 

 brilliant crystals of tin oxide, cassiterite, on a white quartz crystal 

 base, from New South Wales; a huge crystal of pyrite from Arizona; 

 and a rich example of the rare manganese silicate ganophyllite from 

 Franklin, N.J. Over 200 Bolivian minerals, including excellent 

 crystallized cassiterite, ferberite, and bismuthinite also were acquired. 



The finest stone added to the Isaac Lea collection, through the 

 Frances Lea Chamberlain fund, is a flawless golden beryl of fine color 

 from Madagascar, weighing 4G carats. Also, 2 red tourmalines from 

 Madagascar, an engraved emerald of 11 carats, an old carving in 

 Burmese amber, a rare ruby-red feldspar, and 2 unusually deep- 

 colored citrine quartzes were added. 



Other additions to the gem collection include 3 cabochons of 

 white grossularite garnets, 3 of Whitby jet, 3 of amazonstone, and 

 several pieces of jaspar. The Oregon Agate and Mineral Society 

 contributed an unusual cut agate showing iridescent rainbow colors; 

 Martin L. Ehrmann presented a dish of yellow precious serpentine; 

 and John H. Willing 3 gold stickpins fashioned as a pick, a shovel, 

 and a pan, stated to have been made in 1855 and worn by early 

 California gold miners. 



A huge quartz geode, almost 3 feet in diameter and with a crystal- 

 lined cavity 18 inches deep, from Keokuk, Iowa, was presented by 

 William M. Thomas and his son, Beverly Thomas. Mr. Thomas, 

 a veteran geode collector, states that this is the finest geode he has 

 ever seen. W. E. Lockhart gave a huge slab of amazonstone, meas- 



