10 LIST OF CONTRIBUTORS. 



Bowen, George T. Continued. 



Description and analysis of the sillimanite, a new mineral. 



j iii, 375 



Boyer, Charles S. Notes on diatoms from the Dismal Swamp. 

 P '98, 414 



New species of diatoms. P '98, 468 



The biddulphoid forms of North American Diatomaceae. 



P 1900, 685 



A new species of Cymatopleura. P '08, 554 



Jelly-pores in the Diotomaceae. P '10, 271 



Brace, L. J. K. See Gardiner, John, and L. J. K. Brace 

 Bransford, J. T. See Gill, Theo., and J. T. Brans ford 

 Brayton, A. W. See Jordan, David Starr, and A. W. Brayton 

 Bridges, Robert. Remarks on Infusoria. P '42, 169 



Preservation of bone. P '43, 269 



On estimates of the length of the year. P '48, 58 



On lithoid carbonate of iron. P '56, 102 



■ On amygdaloidal trap from Lake Superior. P '56, 143 



Brinton, John H. On a mode of preparing anatomical speci- 

 mens. P '54, 71 

 Brinton, Daniel G. Tunisian flints. P '84, 219 



On the cuspidiform petroglyphs, or so-called bird-track 



rock sculptures of Ohio. P '84, 275 



Impression of the figures on a " Meday stick. ' ' P '84, 278 



Fired stones and prehistoric implements. P '84, 279 



A glacial pebble. P '84, 299* 



On a petroglyph from the Island of St. Vincent, W. I. 



P '89, 417 



Dr. Allen's contributions to anthropology. P '97, 522 



Brown, A. D. Descriptions of two new species of Helix. 



P '61, 333 

 Brown, Amos P. On the young of Baculites compressus Say. 



P '91, 159 



The development of the shell in the coiled stage of Baculites 



compressus Say. P '92, 136 



The crystallization of molybdenite. P '96, 210 



See Pilsbry, H. A., and Amos P. Brown 



Brown, Arthur Erwin. Description of a new species of 



Euteenia. P '89, 421 

 On a new genus of Colubridae from Florida. P '90, 199 



