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SCIENCE. 



[N. S. Vol. II. No. 50. 



carry it northward up Behm Canal. The eflfect 

 of this change is the transfer from American to 

 British territory of an area about equal to that 

 of the State of Connecticut, an area within 

 which stands a custom house of the United 

 States, within which formally was a military 

 post of the United States, and within which is 

 a large island which by act of Congress four 

 years ago was set apart as a reservation for a 

 tribe of Indians that left British Columbian ter- 

 ritory for the purpose of acquiring a residence 

 on American territory. As to submitting to 

 arbitration the question of domination over 

 this particular part of southeastern Alaska, the 

 speaker declared it would be unwise, un- 

 patriotic, and unjust to our Indian wards. He 

 declared that the only arbitration in such a case 

 was the arbitration of battle. 



Mr. Baker's paper will doubtless be published 

 in the National Geographic Magazine. 



The meeting closed with brief remarks by 

 Dr. W. H. Ball, of the Geological Survey, who 

 was one of the commissioners on the part of the 

 United States to discuss the boundary question 

 and kindred questions with Canada, in 1887 

 and 1888, and by General A. W. Greely, United 

 States Army." 



W. F. MORSELL. 



SCIENTIFIC ASSOCIATION OF THE JOHNS HOPKINS 

 UNIVERSITY. 



One hundred and twenty-second regular 

 meeting, November 17, 1895. President Remsen 

 in the chair. 



After a few remarks by the President the 

 following papers were presented and read: 



1. The Discovery and the Properties of Helium. 

 By J. S. Ames and W. "W. Randall. 



Dr. Randall told the story of the discovery 

 of Helium and discussed its properties from the 

 chemist's point of view. He was followed by 

 Dr. Ames, who confined himself to the proper- 

 ties of the spectrum of the gas. At the end of 

 the meeting an opportunity was afforded those 

 present to view the Helium spectra ; the gas 

 being in tubes brought from London by Dr. 

 Randall. 



2. The Solution and Diffusion of Metals in Mer- 

 cury. By W. J. Humphreys. 



Mr. Humphreys gave the results of a number 

 of experiments on the rate and amount of solu- 

 tion and diffusion of various metals in mercury. 

 Diagrams were exhibited showing the results 

 of the investigation. 



The following papers of research were then 

 presented and read by title: 



1. Geometrical Multiplication of Surf aces: ByA. S. 

 Chessin. (Annals of Mathematics.) 



2. On Cauchy^s Numbers : By A. S. Chessin. 

 (Annals of Mathematics.) 



3. On Divergent Series: By A. S. Chessin. 

 (Bull. Am. Math. Soc.) 



4. On a point of the Theory of Functions : By A. 

 S. Chessin. (Am. Journal of Math.) 



5. Demonstration of the Existence of a Limit for 

 Regular Sequences of Numbers: By A. S. 

 Chessin. (University Circulars, J. H. U.) 



6. A New Classification of Infinite Series: By A. 

 S. Chessin. (University Circulars, J. H. U.) 

 On motion the meeting adjourned. 



Chas. Lane Poor, 



Secretary. 



GEOLOGICAL CONFERENCE OF HARVARD UNI- 

 VERSITY, NOVEMBER 12, 1895. 



The Pima and Kirchberg Zones of Contact Meta- 

 morphism. Bj' T. A. Jaggar, Jr. 

 Attention was especially called to the superb 

 maps of the Saxon Geological Survey, the four 

 sections Nos. 124, 125, 135 and 136, making up 

 the Kirchberg area, and sections Nos. 82, 83 

 and 102 the Pirna series. Each section is ac- 

 companied by an ' Erlauterung, ' or pamphlet of 

 descriptive text. The scale of the maps is 1: 

 25,000, and all landmarks which can be of as- 

 sistance in using these maps in the field are 

 indicated in print, such as 'quarry,' 'brewery,' 

 ' paper factory,' etc. Specimens were exhibited 

 of the various metamorphic series in separate 

 suites, each suite being arranged in a long tray; 

 a colored strip of tape attached to each set of 

 specimens had its duplicate pinned across the 

 map showing locality. 



The Kirchberg granite stock lies on the 

 northern flank of the Erzgebirge, south of 

 Leipzig and southwest of Dresden, between the 

 streams Mulde and Goltzsch. Its outcrop forms 



