406 Scientific Intelligence. 



ried on extensive exploration along the coast line, the farthest 

 southern point reached being about latitude 78° 45' S. As the 

 result of magnetic observations made by the Expedition, the 

 present position of the southern magnetic pole is located at 73° 20' 

 S.j and 146° E. At Cape Adare the dip was found to be —80° 34' 

 and the declination 56° 2' E. Observations of the dip were 

 taken at seven other geographical positions, the maximum dip, 

 — 88° l-£\ being taken at the foot of Mt. Melbourne; on the west 

 side of Franklin Island a dip ot —86° 52' was found. As Sir 

 James Ross, in 1841, observed a dip of —88° 24' some twelve 

 miles north of Franklin Island, there seems to have been a 

 decrease in fifty-nine years of 1° 32' ; it is concluded that there is 

 very little doubt that the magnetic pole is very much farther 

 north and west than in 1841. 



3. OstwaWs Klassiker der Exakten Wissenschaften (Wilhelm 

 Engelmann : Leipzig, 1900). — The following are recent additions 

 to this valuable series : 



Nr. 110. Die Gesetze des chemischen Gleichgewichtes fur den 

 verdilnnten, gasformigen oder gelosten Zustand, von J. H. Van't 

 Hoff. Pp. 105. 



Nr. 111. Abhandlung iiber cine besondere Klasse Algebraisch 

 aimosbarer Gleichungen, von N. H. Abel (1829). Pp. 50. 



Nr. 112. Abhandlung iiber bestimmte Integrate zwischen imagi- 

 naren Grenzen, von Augustin-Louis Cauchy (1825). Pp. 80. 



Nr. 113. Zwei Abhandlungen zur Theorie der partiellen Differ- 

 entialgleichungen erster Ordnung, von Lagrange (1772) und 

 Cauchy (1819). Pp. 54. 



4. Scientia. — The inauguration of a series of small volumes on 

 scientific subjects by G. Carre and C. Naud as publishers (Paris) 

 was announced a year since (this Journal, July, 1899, p. 86). The 

 seventh and eighth volumes of the physical-mathematical series 

 have now been issued. The former is by H. Laurent and is 

 entitled " I? Elimination. The author remarks that the only 

 monograph on the theory of elimination is that of Faa de Bruno 

 published in 1859 ; hence the discussion given by him has peculiar 

 value. The other volume is on the subject " Tonometries by F. 

 M. Raotilt. 



5. Introduction to Science; by Alex. Hill, M.D. 140 pp. 

 New York and London (The Macmillan Co.). — This little volume 

 contains a series of interesting chapters on some of the scientific 

 problems now before the public, as on the age of the earth, the 

 origin of species, the constitution of matter, etc. 



The Recent Solar Eclipse. — The report of the Expeditions 

 organized by the British Astronomical Association to observe the 

 total Solar Eclipse of May 28th, 1900, will be contained in a 

 volume shortly to be issued from the Office of " Knowledge." 

 The work will be edited by Mr. E. Walter Maunder, and will 

 contain many fine photographs of the various stages of the Eclipse. 



