INDEX. 



PAGE 



Abbott, C. C, Phases of Bird-Life 343 



" Academy," The, for Americans Ill 



Academy of Natural Sciences, Philadelphia 747 



Accidental Variation 750 



Adder, Cunning of the 251 



Adler, Felix, Hebrew Eeligion 589 



Air, The, in Courts of Justice 756 



Air-Bags for raising Ships 632 



Air-Germs and Spontaneous Generation. (Illustrated.) 91 



Amber, Dredging for 121 



American Association at Buffalo 755 



American Colleges vs. American Science 467 



Amphibious Fishes. (Illustrated.) 546 



Anaasthesia, Discovery of. 506 



Ancient American Civilization 118 



Ancients, Backwardness of the, in Natural Science 438 



Animal Powers of Offense and Defense 355 



Animals, Conscience in ! . 80 



Antelope, The American 378 



Antiseptic Properties of Thymol 381 



Ants, Habits of 252 



Apotheosis of Steam 430 



Argentine Eepublic, Science in the 463 



Army-Worm Moth 380 



Arsenic, Detection of 637 



Astronomy, Origin of 124 



Aurora, Cause of the 638 



Automatic Light-Begister 122 



Awards at the International Exhibition 69 



Axes and Hatchets. (Illustrated.) 186 



Babyhood, Lingual Development in 129 



Backwardness of the Ancients in Natural Science 438 



Bain, Alexander, Sketch of. (Portrait.) 360 



Bastian, H. Charlton, Organisms and their Media 215 



" " The Invertebrate Brain 702 



Bats. (Illustrated.) 523 



Battle-Axe, A Stone 612 



Beadle, J. H., Social Experiments in Utah 479 



vol. ix. 49 



