254 



SCIENCE. 



[N. S. Vol. XVIII. Xo. 451. 



on ' Man as Artist and Sportsman in the 

 Paleolithic Period,' and by Dr. Arthur Eoe 

 on ' The Old Chalk Sea and some of its Teach- 

 ings,' while the evening lecture to working-men 

 will be given by Dr. J. S. Plett on ' The 

 Recent Volcanic Eruptions in the West In- 

 dies.' Americans returning home from sum- 

 mer holidays abroad will find Southport a very 

 convenient place for the meeting, which be- 

 gins on September 9. 



At the meeting of the German Association 

 of Men of Science and Physicians to be held 

 at Cassel from September 20 to 26, general 

 addresses are promised by Professor Ziehen of 

 Utrecht, on the physiological psychology of 

 the feelings and affections; by Dr. Griesbach 

 of Muhlhausen, on the present condition of 

 school hygiene ; and by Professor von Behring 

 of Marburg, on the struggle against tuber- 

 culosis. 



The Congress of Alienists and Neurologists 

 of France and French-speaking Countries 

 held its thirteenth annual meeting at Brussels 

 beginning August 1. 



The twenty-fourth annual meeting of 

 French Geographical and Colonial Societies 

 was held this month in Rouen. According to 

 the London Times twenty-four French geo- 

 graphical societies were represented, nine 

 kindred societies, and three foreign geograph- 

 ical societies. The Royal Geographical So- 

 ciety was represented by Mr. H. J. Mackinder, 

 director of the School of Geography at Ox- 

 ford. Various French Ministries were also 

 represented. The program was a long one, 

 including about forty communications, many 

 of them on questions of great importance and 

 wide interest. On the conclusion of the con- 

 gress a number of excursions were arranged 

 for, about eighty of the members proposing to 

 go to England. 



The British Medical Journal gives some 

 details in regard to the International Con- 

 gress for the Study of Tuberculosis which 

 will be held in Paris from September 24 to 

 October 1, 1904. The congress will comprise 

 a medical, a social and a technical section. 

 In the medical section the following are the 

 questions proposed for discussion: (1) The 



treatment of lupus by the new metliods; (2) 

 the early diagnosis of tuberculosis by the new 

 methods; (3) comparative study of the dif- 

 ferent forms of tuberculosis. The social sec- 

 tion will discuss the following questions: (1) 

 The etiological factors of tuberculosis; (2) 

 the value of the various methods of treating 

 tuberculosis; (3) assurance and sickness so- 

 cieties in relation to the struggle against 

 tuberculosis. The technical section consists 

 of a museum in which will be exhibited col- 

 lections of anatomo-pathological, histological 

 and bacteriological specimens and prepara- 

 tions; tables of statistics, plans and designs 

 for the installation of hospitals, sanatoria and 

 dispensaries; publications of all kinds relative 

 to antituberculosis leagues and associations; 

 and industrial products used in the treatment 

 of tuberculosis. The president of the con- 

 gress is Professor Brouardel. 



A DIFFICULT piece of topographic surveying 

 has recently been completed in connection 

 with the Uncompahgre Valley projects in 

 western Colorado. In the course of the in- 

 vestigations it became necessary that a topo- 

 graphic survey should be made of about 1,500 

 feet of the bottom of the Grand Canyon of 

 the Gunnison River. A general survey of 

 this canyon was made last year by parties 

 connected with the Reclamation Service, and 

 the locality mentioned was selected as the 

 point for the location of the head of a tunnel 

 six miles in length to be constructed for the 

 purpose of conducting water into the Un- 

 compahgre Valley. The canyon at this point 

 is approximately 2,000 feet in depth, the walls 

 being sheer precipices. The water flows very 

 swiftly over huge boulders and through nar- 

 row gorges, and it is therefore impossible, 

 particularly at high stages, to use boats or to 

 traverse the canyon longitudinally in any way. 

 In order, therefore, to obtain the topography 

 of this section it was necessary to descend 

 into the canyon over cliffs and through narrow 

 fissures in four different places. The 

 topography of the talus slope for about 600 

 feet on the south side of the river was taken 

 first by descending through a narrow fissure 

 which, being of softer material than the 

 granite cliffs of which the walls are generally 



