572 



SCIENCE. 



[N. S. Vol. XII. No. 302. 



tratiou ' ; 15. ' To Deane what Constitutes an Epi- 

 demic ' ; 16. ' On National Leper Home ' ; 17. ' Dan- 

 gers to tile Public Health from Illuminating and Fuel 

 Gas'; 18. 'Revision of Bertillon Classification of 

 Causes of Death'; 19. 'Transportation of Diseased 

 Tissue by Mail ' ; 20. ' The Teaching of Hygiene and 

 Granting of Degrees of Doctor of Public Health.' 



It has been arranged to devote one day, 

 "Wednesday, October 24th, to the discussion of 

 topics relating to sewerage and water supply. 

 Special attention will be given to the engineering 

 phase of this subject. The following subjects 

 ■will be presented for discussion : 



1. ' "What Constitutes a Satisfactory "Water Sup- 

 ply ?' 2. ' The "Value of "Vital Statistics as an Index 

 to the Pollution of "Water Supplies ' ; 3. ' Comparative 

 Statistics of the "Water Supplies of the Leading 

 American Cities as shown by Typhoid Fever Sta- 

 tistics ' ; 4. Conservation and Control of Water Sup- 

 plies by State, Provincial and Municipal Authori- 

 ties ' ; 5. ' The Relation of the Analytical Laboratory 

 to Problems in the Pollution of Public "SV'ater Sup- 

 plies ' ; 6. ' The Legal Aspect of "Water Pollution ' ; 

 7. ' The Present Status of Methods of Purification of 

 Sewage entering Public "Water Supplies ' ; 8. ' Sew- 

 age Purification Plants now in Operation in Amer- 

 ica, with reference to Public "Water Supplies ' ; 



9. Methods of Purification of "Water Supplies, with a 

 Summary of Plants now in Operation in America ' ; 



10. Recent Progress in Europe concerning the Puri- 

 fication of "Water Supplies.' 



SECTION ON BACTERIOLOGY AND CHEMISTRY. 



1. 'On Standard Methods of "Water Analysis ' ; 2. 

 ' Laboratory "Work on Tuberculosis ' ; 3. ' On Obtain- 

 ing Experimental and Clinical Data on the Exact 

 Mode of Infection in Rare and Unusual Cases'; 4. 

 ' Study of the Causation of Cancer ' ; 5. ' Bacteriology 

 of Milk in its Sanitary Relations ' ; 6. ' "Variations of 

 the Colon Bacillus in Relation to Public Health ' ; 7. 

 ' Variations of the Diphtheria Bacillus '; 8. ' Bacteri- 

 ology of Yellow Fever ' ; 9. ' Inter-Laboratory System 

 of Card Cataloguing for Sanitary Bibliography ' ; 10. 

 ' Use of Chemical Preservatives in Foods ' ; 11. ' Exhi- 

 bition of Laboratory Apparatus and Appliances for 

 Teaching Hygiene ' ; 12. ' Census of Laboratory Men 

 engaged in Sanitary "Work.' 



SCIENTIFIC NOTES AND NEWS. 



Professor George F. Barker, LL.D., for 



twenty-eight years professor of physics in the 



University of Pennsylvania, has resigned his 



chair because of poor health. The corporation 



of the "University has made him professor 

 emeritus of physics and voted him a pension. 



De. N. F. Drake, of the Imperial Tien-Tsia 

 University, whose explorations of the anthra- 

 cite coal fields of China we recently noted, re- 

 mained in Tien-Tsin during the late fighting in 

 that city. German troops were finally sta- 

 tioned in the univ^sity buildings and com- 

 pletely destroyed the apparatus of the chem- 

 ical and assay laboratories under Professor 

 Drake's charge. 



General A. "W. Geebly, Chief of the Army 

 Signal Service, has returned from Alaska. He 

 was on board the steamer Orizaba which went 

 aground at St. Michael, while laying a cable 

 between that place and Nome. 



Professor H. A. Rowland, of the Johns 

 Hopkins University, was given at the Paris Ex- 

 position, in addition to the grand prize for his 

 spectroscopic apparatus, which we have already 

 noted, a second grand prize for his multiplex 

 telegraph printing machine. 



Dr. E. "W". Scripture, of Yale University, 

 was awarded the gold medal of the Paris Ex- 

 position for methods of testing color-blindness. 



President Daniel C. Gilman, of the Johns 

 Hopkins University, who was granted a leave 

 of absence last spring by the trustees, in com- 

 memoration of the twenty-fifth anniversary of 

 his election, and has since been abroad, has re- 

 turned to Baltimore. 



The College of Physicians of Philadelphia 

 has awarded its Alvarenga prize for 1900 to Dr. 

 David De Beck of Cincinnati for his essay en- 

 titled 'Malarial Diseases of the Eye.' Essays 

 in competition for the prize next year must 

 be received not later than May 1, 1901. The 

 value of the prize is about $180. 



The daily papers report that the Mexican 

 Government is considering the award of $100,- 

 000 to Dr. Angel Bellinzaghi, who was born in 

 Italy in 1865, for his serum against yellow fever 

 which is said to have proved successful in 

 eighty-five per cent, of the cases in Mexican 

 hospitals. 



Mr. John E. Hudson, president of the 

 American Bell Telephone Company, died on 

 October 1st. Under his management the com- 



