January 26, 1900.] 



SCIENCE. 



157 



the suggestion of Professor Eschanhagen. They 

 publish their declination traces regularly in the 

 interests of the mining engineers. 



While residing in Cincinnati, Dr. Baur made 

 magnetic observations about 100 meters west of 

 an electric tramway (double trolley overhead 

 system) running north and south. During the 

 passage of a car, the declination needle was de- 

 fected V—2'. 



De. L. a. Bauer returned to Washington on 

 December 18th, having compared a set of the 

 United States Coast and Geodetic Survey instru- 

 ments with the standard instruments at the 

 following observatories, viz. : Kew (before and 

 after visiting the succeeding observatories), 

 Potsdam, Pawlousk, and Pare St. Maur. He 

 has also compared his dip circle with three 

 earth-inductors of different construction. At 

 Potsdam (Leonard Weter's inductor), at Paw- 

 lousk (Wild's portable inductor), and at Darm- 

 stadt (Karl Shering's inductor). The results 

 will be published as soon as the various instru- 

 ments of the Coast arid Geodetic Survey have 

 been intercompared, and when the comparisons 

 at the Toronto Observatory have been made. 

 Owing to the limited time at Dr. Bauer's dis- 

 posal, it was necessary for him to restrict him- 

 self to the above-named observatories. 



Professoe E. Leyst, director of the Physico- 

 Geographical Institute of the University of 

 Moscow, includes in his department a syste- 

 matic course on the theory and practice of 

 measurements in terrestrial magnetism. His 

 students are obliged to determine the magnetic 

 elements, and to set up and operate a set of 

 variation instruments and to determine the 

 constants. The new institute, which will be a 

 model building of its kind, is rapidly approach- 

 ing completion. Professor Leyst has provided 

 in this building for the installation of a set of 

 variation instruments. The accompanying ab- 

 solute observations will be made at a point out- 

 side of Moscow, far removed from any disturb- 

 ing influence. 



SCIENTIFIC NOTES AND NEWS. 



THE CONGRESS OP AMERICAN PHYSICIANS AND 

 SURGEONS. 



The fifth Congress of American Physicians 

 and Surgeons will be held at Washington on 



May 1st, 2d and 3rd, under the presidency of 

 Professor Henry P. Bowditch. The following 

 fourteen societies join in the triennial Con- 

 gress : 



The American Neurological Association. 

 The American Gynecological Society. 

 The American Dermatological Association. 

 The American Laryngological Association. 

 The American Surgical Association. 

 The American Climatological Association. 

 The Association of American Physicians. 

 The American Association of Geni to-Urinary Sur- 

 geons. 



The American Orthopedic Association. 

 The American Physiological Society. 

 The Association ot Amerix^n Anatomists. 

 The American Pediatric Society. 

 The American Ophthalmological Society. 

 The American Otological Society. 



There will be two general sessions of the 

 Congress. The subject at the first of these to 

 be held on Tuesday afternoon, will be ' Bac- 

 teriology in Health and Disease,' and papers 

 will be presented by Professor Theobald Smith, 

 Dr. S. J. Meltzer, Professor Harold C. Ernst, 

 Dr. Richard C. Cabot, Dr. Edward R. Baldwin, 

 Professor William S. Thayer, Professor George 

 Dock and Professor Simon Flexner. At the 

 second session, on Wednesday afternoon, the 

 program will be as follows : 



' On Modern Therapeutics, ' by Prof. William Osier, 

 M.D., LL.D., of Baltimore, Md. 



Essay, 'Sociological Status of the Physician,' by 

 Dr. Clarence J. Blake, of Boston, Mass. 



Poem 'The Evolution of the Physician,' by Dr. S. 

 Weir Mitchell, M.D., LL.D., of Philadelphia, Pa. 



Professor Bowditch will give his address as 

 president on Wednesday evening, the subject 

 being, 'The Medical School of the Future.' 

 This will be followed by a reception and there 

 will be a banquet on Thursday evening. The 

 separate societies will hold their meetings on 

 Tuesday and Wednesday mornings and on 

 Thursday. 



The Secretary of the Congress is Dr. W. H, 

 Carmalt, New Haven, Conn. 



THE SOCIETY OF AMERICAN BACTERIOLOGISTS. 



At the New Haven meeting of the American 

 Naturalists during the Christmas holidays, a 

 number of the leading bacteriologists of the 



