THE AMERICAN MUSEUM JOURNAL 



nesium light, were the diamonds to which Dr. Kunz gave the 

 name tiffanyite in a paper read before the New York Academy 

 of Sciences in December, 1895. These stones contain a pecuHar 

 substance which gives them what is known as the blue-white 

 color. They are fluorescent like anthracene, and hold the lumi- 

 nosity for a long time. 



At the meeting of the New York Academy of Sciences held 

 in the Museum on October 6, 1903, Dr. Kunz gave a summary 

 account of his and Professor Baskerville's interesting and valua- 

 ble investigations, illustrating his remarks with many specimens. 

 The scientific aspect of the studies is discussed in the American 

 Journal of Science for December, 1903, and January, 1904. 



AN EXTINCT CAVE FAUNA IN ARKANSAS. 



GREAT part of the evidence as to the antiquity of 

 ]\Ian in the Old World has been found in ancient 

 caves, where his bones or indications of his exist- 

 ence have been found associated with remains of 

 many extinct animals of the Pleistocene Epoch or 

 earlier. But in this country the exploration of caves has until 

 recently yielded very meagre results as to extinct animals, and 

 has added practically nothing to our evidence of the antiquity 

 of Man. Within the last two years, however, explorations con- 

 ducted by Professor F. W. Putnam and Dr. J. C. Merriam in the 

 Pleistocene caves of California, have brought to light a large 

 series of fossil remains, mostly of extinct species of animals, and 

 recently another rich cave deposit, equally ancient, has been 

 found in Arkansas, and is now being investigated by this Mu- 

 seum. This deposit was discovered by Dr. Teller, and we owe 

 to the good offices of Professor Putnam the opportunity to 

 explore it. Mr. Barnum Brown, who was sent out for this pur- 

 pose by Professor Osborn last summer, has already succeeded in 

 making a collection consisting of some thousands of specimens of 

 over thirty species of animals, many of them extinct. The col- 

 lection is especially rich in remains of small mammals such as 



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