INDEX OF VOLUMES I TO XX. 75 



JN otes '. VOL. TAGE 



Woman One Ilundred and Eleven Years old ; Mailable Matter in 

 the United States ; Water Storage on the Upper Hudson ; New Sci- 

 ence Association in Ohio ; Leaden Pipes and Rats ; Paper from 

 Various Substances ; Agassiz Monument vi 7G6 



Improved Pneumatic Telegraph ; Death of J. E. Gray ; Death of F. 

 W. A. Argelander; Unrelated Facts in Natural History ; Manual 

 for British Arctic Expedition ; Grasshoppers and Fruit-Trees; The 

 Feet ; Agassiz Memorial Fund ; Mumbo Jumbo ; Death of D'O. 

 D'Halloy ; Introducing Eastern Fish in Western Waters ; The 

 Chinch-Bug; Peat-cutting Machine; Novel Heating Apparatus for 

 Arctic Explorers; Professor Huxley; "Mind," a New Periodical; 

 Monument to Scheele ; Novel Bell vii 127 



Gas Carbon ; Adulteration of Tobacco ; Trees and Dry Seasons ; An- 

 timony in California ; Preservation of Wooden Posts ; Prolonged 

 Fasting; New Mammalian Genus; Ly ell's Bequest to the Brit- 

 ish Geological Society; International Congress of Americanists; 

 Brittleness of Iron at Low Temperatures; Medicated Candles; 

 Petroleum Fuel on Steamers ; Canada Rice-Grass for Paper ; In- 

 flammability of Drunkard's Flesh; Death of Robert Willis; Popular 

 Interest in Science ; Influence of Turf on Temperature of the Soil ; 

 Chloral Hydrate in Sea-Sickness ; Recognizing Scientific Services ; 

 Potato-Fungus; Overproduction of Grapes in California; Oxides 

 of Nitrogen ; Professor Whitney in England ; Sea-Water for Street 

 Sprinkling ; Dynamite for Breaking up Old Cannon vii 255 



Formation of Graphite ; Aniline Colors free from Arsenic ; Limit of 

 Temperature in Combustion; Sckweinfurth's Appointments at 

 Cairo; Sensations, Time required for ; Captain Boy ton ; Hanged 

 for producing Abortion; Prohibitory Duties at the Centennial; 

 Scientific Association at Peoria; British Association; Donation to 

 Philadelphia Academy of Natural Sciences; Death of D. Hanbury; 

 Bremen Polar Expedition; Penikese School of Natural History; 

 Medal to Captain Hall ; A Backward Spring ; Prize to J. P. Petti- 

 grew ; Mortality of United States Cities ; Boiling Lake in Domini- 

 ca; American Association Meeting; Weather Forecasts; Artificial 

 Isthmus between France and England; Dog dying of Measles; 

 Microscopic Club; Return to Bloodletting in Medical Practice; 

 Air contained in Soil ; New York Academy of Sciences; Weight- 

 ing of Black Silks; Great Cyclopasdia in China vii 382 



Errata; Three New Scientific Associations; Admiral S. Osborn; 

 Lung- Disease among Horses; Death of Joseph Winlock ; Fifteenth 

 Meeting of the National Educational Association ; Information se- 

 cured by the Committee testing Iron and Steel ; New Book by A. R. 

 Wallace; Medal to Mary Putnam-Jacobi ; Hatching Sturgeon-Eggs; 

 Swedisli Arctic Expedition; Geological Discovery in Canada; For- 

 ests and Rainfalls ; Election of Paul Bert to the French Aeronauti- 

 cal Society ; Geological Survey of California ; Wire-Gauze Specta- 

 cles ; Risks of Arctic Travel; Railways affecting Caste in India; 

 Mean Height of Europe; Carbonic Oxide in Tobacco-Smoke; 

 Vaccination in India; Impure Mineral Water; Transmission of 

 Disease from Human Beings to Domestic Animals ; Norwegian 

 Deep-Sea Exploration ; Canine Sagacity ; New Species of Crus- 



