SCIENCE 



A WEEKLY JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 



OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 



FOR THE ADVANCEMENT OF SCIENCE. 



^ - : 



Friday, September 28, 1906. SOME PROBLEMS FOR AGRICULTURAL. 



= CHEMISTS.'- 



CONTENTS. rr ^ • £ ■ . • . j j. 



iHE topic 01 my paper is not intended- 



Some Problems for Agricultural Chemists: , .t • -\ ,^ , -r -, 



Professoe E. b. Vookhees 385 ^0 convey the idea that I have anything- 



The Teaching of Science in College: Pro- ^ew or startling to suggest, or that I in- 



FESsoR George H. Mead 390 tend to point out the shortcomings of the- 



Scientific Books.— American agricultural chemist. My pur- 



Moulton's Introduction to Astronomy: . . , 



Professor W. J. Hussey. Smith's Intro- POse is mamly to state what an experience 



auction to General Inorganic Chemistry: of twenty-five years has suggested in the 



Professor H. L. Wells 397 « , • , • . . . • 



Scientific Journals and Articles 399 ^^^ °^ chemical investigations that seem 



Discussion and Correspondence:— ^^^ to be essential, if we are to maintain, or 



Discontinuous Variation: President David increase, the fertility of our soils, and thus 



Starr Jordan Vulcanism: Professor retain the position that we have acquired 



Carl Barus. The Rigidity of the Earth: . ^ 



Professor L. M. Hoskins. The Interior of ^^ an agricultural people. We have in this 



tlie Earth: mAi^FB^D C. Lane. The country quite as capable chemists, I am 



Geographical Distribution of Students: . 



Professor Rudolf Tombo, Jr 399 ^^^e, as there are m any country, yet the 



Special Articles: — conditions existing here in the past, and 



The Preservation of Surface Condenser that do exist now, in a way, have been 



Tubes in Plants using Salt or Contami- i x j j -.i , • i i 



nated Water Circulation: W. W. Church- ^^^^ ^^ to demand that our agricultural 



ILL 405 chemists should follow lines of a semi- 



Quotations:— technical, rather than of an investigational, 



The Next International Tuberculosis Con- -, , • ji .-,,,-, 



ference 409 Character, m the sense that they have neces- 



Current Notes on Meteorology:— sarily applied themselves to the problems 



Climate and Altitude in Africa; Monthly of crop utilization, rather than to those 



Weather Review; Central Low Pressure in -, . j ■ i i 



a Tornado; Notes: Professor R. DeC. having to do with the principles involved 



^^^° 410 in their production. The principles of 



Botamcal Notes:- agricultural chemistry, which the early in- 



ANeiv Flora of Colorado; The North Amer- 4.- . i.t i i 



ican Chareae; A Moss Book: Professor vestigators established, and which were 



Charles E. Bessey 411 collated and formed into a science by the 



"Xl^fZ °L'Z:JIZ ?SLot --i »' the immortal Liebig, have served as 



L. H. Pammel 413 the foundation for our work, and this 



Sir William Perkin and the American Jubilee basis has been sufficient tO enable US to 



of the Coal Tar Industry 413 i , „ , 



Scientific Notes and News 414 "^^^^ ^f^"^* progress from the economic 



University and Educational News 416 Standpoint, SO long as there were, in a 



sense, new worlds to conquer and new 



MSS. intended for publication and books, e^ .^ ^^^^^^^ delivered before the American 

 review should be sent to the Editor of Science, Garrison-on- 



Hudson, N. Y. Cnemical Society at the Ithaca meeting. 



