586 



SCIENCE. 



[N. S. Vol. XIX. No. 484. 



enamel is arranged in numerous transverse 

 laminse. 



rEEDEMc S. Webster, 

 Secretary-Treasurer. 



THE MASSACHUSETTS INSTITUTE OP TECHNOLOGY 

 GEOLOGICAL JOURNAL CLUB. 



Ti-IE club lias reviewed the foUovcing papers 

 during the month of February: 



W. G. Ball, 'The Outlook for Mining in 

 the New Territory Opened up by the San 

 Pedro, Los Angeles and Salt Lake Railroad' 

 (Eng. and Min. Jour., February 4, 1904) ; G. 

 G. Wald, ' Comparison of Fatal Mining Ac- 

 cidents in the United States and Great 

 Britain' {Eng. and Min. Jour., January 14, 

 1904); L. T. Buell, J. T. Glidden, W. L. 

 Spalding and E. Burton, ' Theories of Ore 

 Deposition Historically Considered' {Eng. 

 and Min. Jour., December 14, 1903) ; G. F. 

 Loughlin, ' The Differentiation of Eock 

 Magmas ' {Eng. and Min. Jour, October 17, 

 November 28 and December 14, 1903). These 

 papers were discussions by J. F. Kemp and 

 Blarney Stevens, and the arguments were pre- 

 sented by Mr. Loughlin, with illustrations of 

 occurrences of igneous rock in Massachusetts. 

 E. H. Allen, 'The Production of the Minor 

 Minerals in 1903 ' {Eng and Min. Jour., 

 January 14 and 21, 1904); J. Daniels, 'The 

 Geology of the Kolas Gold Fields ' {Eng. and 

 Min. Jour., February 11, 1904) ; B. L. John- 

 son, ' Native Gold Original in some Meta- 

 morphic Gneisses ' {Eng. and Min. Jour., 

 February 4, 1904) ; S. Shapira, ' Mining in 

 Korea ' {Eng. and Min. Jour., March 3, 1904) ; 

 U. S. Whittemore, ' The Origin, Properties 

 and Uses of Shale ' {The Michigan Miner, 

 November, 1899, to February, 1900). 



The following original papers were pre- 

 sented : 



H. W. Shimer, ' The Discussions of Ques- 

 tions Arising from the Interpretation of 

 Faunas with Eeference to Trilobite Mountain, 

 Orange Co., N. Y. ' The paper was taken 

 from the results of detailed study in the re- 

 gion, and dealt mainly with the determining 

 of strata in the absence of definite fossil evi- 

 dence. The complete results are now in pro- 

 cess of publication. G. Richards, ' Experi- 



ences in Mining in Mexico.' Dr. C. H. War- 

 ren, ' Asbestus as a Fire-Proofing Material.' 

 Experiments by Dr. Warren on chrysolite, the 

 principal asbestus of commerce, showed that 

 it lost its cohesive strength after being sub- 

 jected to red heat from three to four minutes, 

 and gave ground for the conclusion that, in 

 cases of great fires, asbestus could, at the most, 

 serve only to delay the progress of the fiames 

 for a few minutes. 



G. F. Loughlin, 



Secretary. 



THE CLEMSON COLLEGE SCIENCE CLUB. 



The club held its regular monthly meeting 

 on Friday night, January 15, 1904. 



Professor W. M. Eiggs gave some facts and 

 figures in regard to street railways, as com- 

 piled from reports of the last census. The 

 figures were especially interesting as showing 

 the small number of fatalities resulting from 

 travel on street cars. 



Professor H. Benton gave a communication 

 entitled ' The Shipment of Fruits and Vege- 

 tables on a Commereial' Scale.' The speaker 

 explained in detail the different kinds of ship- 

 ping cases used in practice and pointed out 

 the defects and advantages of the different 

 types. The methods used in packing and 

 handling the various fruits and vegetables on 

 some large gardens and orchards in Georgia 

 were pointed out. The methods of packing 

 the various fruits and vegetables were ex- 

 plained, special attention being paid to the 

 cantaloupe. The construction and method of 

 filling refrigerator cars were explained and 

 the defects in the method of refrigeration, as 

 used at present, were pointed out. Some of 

 the improvements which have been proposed, 

 namely, refrigeration by means of liquid air, 

 etc., were mentioned. The effect of cold 

 storage on fruit was shown by means of lan- 

 tern slides. The whole paper was illustrated 

 by a number of lantern slides. 



Under the title of ' Some Leaf Mining In- 

 sects,' Professor Chas. E. Chambliss gave 

 notes on Bucculatrix pomifoliella, Aspidisca 

 splendoriferella and Tischeria malifoliella. 

 The work and the stages in the development 



