Miscellaneous Intelligence. 399 



experience has shown to be the best, and the methods for carry- 

 ing them out are so fully described, that with the attentive use of 

 the work, even beginners may achieve good results, while the 

 experienced analyst will find much that is of interest and value 

 in saving time and work. It is well and clearly written and the 

 field has been thoroughly covered. It is to be hoped that its 

 appearance will do much to raise the standard in this field of 

 scientific work. l. v. p. 



11. Notes on the Rocks of N-ugsuaJcs Peninsula and its environs, 

 Greenland ; by W. C. Phelan. Smith Misc. Coll., Quar. Issue, 

 vol. 45, pp. 183-212. 1904. — The author has made a study of a 

 collection gathered by Professor Schuchert and Dr. David White. 

 The collection embraced types of gneiss, diorite, syenite, perido- 

 tite, monzonite, granite and basalt, the latter containing native 

 iron. Detailed petrographic descriptions of these are given and 

 of several, complete chemical analyses were made. The paper 

 adds considerably to our knowledge of the petrography of Green- 

 land and will be read with interest by petrographers. l. v. p. 



12. TIeber den Kali-8yenit des Piz Giuf und TJmgebung und 

 seine Ganggefolgschaft ; von F. Weber. Beitr. zur Geol. Karte 

 der Schweiz Neu. Folge XI Y Leif. Bern, 1904, 4°, 176 pp., pi. 

 V. — The rock masses described in this paper lie in the western 

 part of the Aar massive. The main mass of syenite forms a long 

 slender lens in granitic rocks, about 13 kilometers long and bent 

 slightly into an S shape. It is accompanied by dikes of more 

 salic and femic characters. There are also varieties of the main 

 syenite type. All these rocks, under the headings of syenite, 

 aplite, granite porphyry, spessartite and kersantite, have been 

 thoroughly studied and analyzed and the results are here pre- 

 sented, together with discussions of their relationships, origin, 

 and the bearing of these on the general question of differen- 

 tiation. It is an extended and careful piece of work which adds 

 to our knowledge of local Swiss petrology and contains much of 

 gener'al interest to petrographers. l. v. p. 



III. Miscellaneous Scientific Intelligence. 



1. Harvard College Observatory. — Recent publications of the 

 Harvard College Observatory include the following : 



Annals, vol. xlvi, Part II, pp. 121-249, with plates I, II, Obser- 

 vations of Variable Stars made with the Meridian Photometer 

 during the years 1892-1898 ; by Edward C. Pickering. Vol. 

 liii, No. Ill, pp. 45-73 with plates I, II. The ninth Satellite of 

 Saturn ; by William H. Pickering. This paper gives a most 

 interesting account of the search, begun in 1888, for the supposed 

 ninth satellite of Saturn, and its identification in 1899 on photo- 

 graphs taken the year previous at Arequipa. Later observations 

 have served to determine with accuracy the orbit of Phoebe, as 

 the satellite has been called. It is found to have an eccentricity 

 greater than that of any other planet or satellite and is exceeded 



