1S8 Scientific Intelligence. 



22. Celestite in Canada (Communicated). — Henry Lampard 

 notes the occurrence of crystals of celestite at Longue Pointe on 

 the Island of Montreal. They are found in a vein, with fibrous 

 structure, in the Trenton limestone near where it is cut by an 

 igneous dike. 



III. Miscellaneous Scientific Intelligence. 



1. American Association.— The fifty-fifth annual meeting of 

 the American Association for the Advancement of Science was 

 held at New Orleans during the week beginning Dec. 29, with 

 Prof. C. M. Woodward as President. Six affiliated societies met 

 at the same time. The next meeting of the Association has been 

 appointed for New York City in Convocation week, beginning 

 Dec. 27, 1906. Prof essor W. H. Welch has been elected Presi- 

 dent. 



2. OstwalcVs Klassiker cler exakten Wissenschaften. Leipzig, 

 1904 (Wilhelm Engelmann). — The following are the titles of the 

 latest additions to this highly valuable series of scientific classics: 



No. 146. — Tjber die Losung der unbestimmten Probleme zwei- 

 ten Grades ; von Joseph Louis Lagrange (1768). Pp. 131. 

 Aus dem Franzosischen itbersetzt und herausgegeben von Eugen 

 Netto in Giessen. 



No. 147. — Beitrag zur physiologischen Optik ; von Johann 

 Benedikt Listing. Pp. 52, with portrait and two plates. 

 Herausgegeben von Prof. Dr. Otto Schwarz, Leipzig. 



No. 148. — Tjber das Gedachtnis als eine allgemeine Funktion 

 der organisierten Materie ; von Ewald Hering. Pp. 21. Vor- 

 trag gehalten in der feierlichen Sitzuno- dor Kaiserlichen Akade- 

 mie der Wissenschaften in Wien, am XXX Mai, MDCCCLXX. 



No. 149. — Tastsinn und Gemeingefilhl ; von Ernst Heinrich 

 Weber. Pp. 156 with portrait. Herausgegeben, von Ewald 

 Hering. 



No. 150. — Bestimmung des Brechungs-und Farbenzerstreuungs- 

 vermogens verschiedener Glasarten in Bezug auf die Vervoll- 

 kommung achromatischer Fernrohre ; von Joseph Fraunhofer. 

 Pp. 36, with portrait, 1 plate and 6 text figures. Herausgegeben, 

 von Arthur von Oettingen. 



The Science Year Book, with Astronomical , Physical and Chemical Tables, 

 Summaries of Progress in Science, Directory and Diary for 1906 (Second 

 year of issue). Edited by Major B. F. S. Baden-Powell. Pp. 208 ; 365 ; 

 vi. London, 1905. (King, Sell & Olding, Ltd).— The Preface states that in 

 this issue of the Science Year Book, " a number of additions and alterations 

 have been made. New maps of the Constellations and of the Moon replace 

 the old ones. Maps of Magnetic Variation and Rainfall are added, as are 

 tables of Geology and of the Animal Kingdom. In addition to many new 

 notes, among those in Physics and Chemistry is a table of Spectra. In the 

 Directory, a list of Universities with Professors of Science is included ; also 

 a list of Colonial Scientific Societies, and many new names are added to the 

 Biographies."- 



