320 



SCIENCE. 



[N. S. Vol. XIX. No. 477. 



of some diagram the principal facts of eacli 

 analysis, so that they may at once appeal to 

 the eye. Professor Iddings describes the vari- 

 ous kinds of diagrams that have been used, 

 finally explaining the kind which seems to him 

 the most useful. These diagrams express 

 the relations of all the leading constituents of 

 an analysis. Professor Iddings has also de- 

 vised a plan for the comparison, upon charts, 

 of diagrams representing separate analyses, 

 so that the full range of composition-found for 

 known igneoiis rocks is at once illustrated. 

 This publication presents these charts, which 

 are printed in four colors and accompanied by 

 descriptive test. This graphic representation 

 brings out many facts concerning the com- 

 position of the earth's magmas. The fact 

 that there are no well-defined chemical groups 

 of rocks, but rather a continuous series with 

 no natural dividing lines, is clearly illustrated. 

 The axithor discusses the relations exhibited 

 by the charts, with particular reference to 

 rock classification. 



UNIVERSITY AND EDUCATIONAL NEWS. 



Columbia University, the Massachusetts In- 

 stitute of Technology, the Lawrence Sci- 

 entific School of Harvard University and the 

 Shefiield Scientific School of Yale University 

 will unite in a summer school of mining to 

 be held in Colorado. The conduct of the sum- 

 mer school is to be in the hands of an execu- 

 tive committee, consisting of Dr. John Hays 

 Hammond, representing Tale University ; Pro- 

 fessor Eobert H. Richards, of the Massachu- 

 setts Institute of Technology; Professor 

 Henry L. Smyth, of Harvard University, and 

 Professor Henry S. Munroe, of Columbia Uni- 

 versity. The last named has been appointed 

 director of the school for the first year, and 

 he will have under him a corps of competent 

 instructors drawn from the several institu- 

 tions. Mr. George Crocker, through Professor 

 John Hays Hammond, has offered to pay the 

 cost of the school this summer, and has placed 

 $12,000 for this purpose in the hands of Mr. 

 Hammond and the presidents of the four in- 

 stitutions named, who will act as trustees of 

 the fund. 



The new science and administration build- 

 ing of Colorado College, at Colorado Springs, 

 known as Palmer Hall, will be formally 

 opened with various celebrations during the 

 latter part of the month. The dedicatory 

 address will be delivered on February 23, by 

 Dr. David Starr Jordan; on February 22 ad- 

 dresses will be delivered by Dr. C. R. Van 

 Hise, Dr. S. L. Bigelow, Dr. C. E. Bessey and 

 Dr. Henry Crew. The new building has been 

 erected at an expense of $280,000, and con- 

 tains ample laboratory facilities for the sci- 

 entific department, a museum, etc. 



A NUMBER of influential heads of colleges 

 and professors at Oxford have issued a leaflet 

 urging that candidates for honors in mathe- 

 matics and natural science shall be allowed 

 to substitute for the entrance examination in 

 Greek, mathematics, a ■ science or a modern 

 language. 



Henry S. Williams, since 1892 professor of 

 geology in Yale University, where he was 

 called from Cornell University, has accepted 

 a call to the head of the department of geology 

 at Cornell. 



Dr. W. R. Whitehorne, formerly professor 

 of physics and chemistry at Muhlenberg Col- 

 lege, Allentown, Pa., has been appointed in- 

 structor in physics at Lehigh University. 



Dr. Waldemar Koch, associate in pharma- 

 cology in the University of Chicago, has re- 

 signed to accept the assistant professorship 

 of pliarmacology and physiological chemistry 

 in the University of Missouri. 



Dr. George Byron Gordon has been ap- 

 pointed instructor in anthropology in the Uni- 

 versity of Pennsylvania. 



Dr. W. S. Bayley has resigned the chair 

 of mineralogy and geology at Colby College 

 which he has held since 1888. 



Professor Charles H. Haskins, of the 

 mathematical department of the Sheffield 

 Scientific School, Yale University, has re- 

 signed because of impaired health. 



Dr. Bonnhofer, of Konigsberg, has been 

 elected professor of psychiatry and director 

 of the Insane Asylum at Heidelberg. 



