Geology. 355 



The table of contents of this first number is as follows: The 

 Pre-Cambrian rocks of the British Isles, by Sir Archibald Geikie; 

 Are there traces of glacial man in the Trenton gravels ? by W. 

 H. Holmes; Geology as a part of the college curriculum, by H. 

 S. Williams; The nature of the englacial drift of the Mississippi 

 basin, by T. C. Chamberlin. The subscription price is three 

 dollars per annum. 



6. Republication of Conrad's Works. — Conrad's " Fossil Shells 

 of the Tertiary Formations of North America" will be repub- 

 lished by Mr. G. D. Harris of Washington, D. C, as soon as 100 

 subscriptions can be obtained at $3.00 each, (about half the 

 original cost of publication). The new edition will include Nos. 

 1, 2, 3 and 4 of the original edition, No. 3 of the so-called " repub- 

 lication of 1835," together with the different editions of Prefaces, 

 Introductions, etc. Those desiring copies at the above rate should 

 confer at once with Mr. Harris, care of Smithsonian Institution. 



Conrad's "Medial Tertiary" is about to be republished by the 

 Wagner Free Institute of Sciences of Philadelphia. 



7. Lines of /Structure in Meteorites. — Dr. Brezina has kindly 

 called my attention to the discussion of the lines in stony mete- 

 orites given by v. Reichenbach in an article in Poggendorjfs 

 Annalen, vol. cviii, pp. 291-311 (1859), Ueber das GefiXge der 

 Stein- Meteor iten . h. a. n. 



III. Botany. 



1. The localization of the perfumes of Flowers. — Mesnard's 

 method of examining floral odors is applicable to a wide range of 

 micro-chemical studies. A ring of glass is cemented to a suit- 

 able glass-slide, and within this cell another smaller ring is glued, 

 in such a manner as to leave between the two a clear annular 

 space. In this space is placed pure chlorhydric acid. On a 

 cover-glass, large enough to cover the whole of the larger cell, is 

 put a drop of pure glycerine containing a good deal of sugar, 

 and in this reagent is deposited the section of petal to be studied. 

 The cover-glass is now to be inverted and applied to the outer 

 ring. By the concurrent action of the vapor of the acid and the 

 dehydrating activity of the glycerine, the essential or the fatty 

 oil containing the perfume separates in minute drops. 



A modification of the process directs that the central ring be 

 covered by its own cover-glass. On this the drop of glycerine is 

 to be put, and this is to hold the sections. 



By this simple method, the localization of the perfume of the 

 jasmine, rose, violet and tuberose, has been effected. g. l. g. 



2. Botanical -Prizes of the French Academy. — For the year 

 1892, these prizes were assigned as follows : The Prix Desmaz- 

 ieres, for the most useful work published during, the preceding- 

 year, on any cryptogamic subject was given to Professor Pierre 

 Viala, for his studies in regard to certain diseases of grapevines 

 and fruit trees. The committee call particular attention to the 



Am. Jour. Scr.— Third Series, Vol. XLV, No. 268.— April, 1893. 

 25 



