INDEX OF VOLUMES I TO XX. 113 



VOL. TAGE 



Sponges, Propngating, by Cuttings (Misc.) xx 141 



Spontaneous Generation ii 83 



Generation (Misc.) x 759 



Generation. H. O. Bastian v 695 ; vi 185 



Generation. John Tyndall viii 686 ; x 641 ; xii 476, 591 



Generation, Air-Germs and. P. Schiitzenberger ix 91 



Generation Controversy (Misc.) xi 381 



Generation Controversy. W. H. Dallinger ix 448 



Generation, Roberts on (Misc.) ix 638 



Generation, Tyndall and Roberts on (Misc.) x 757 



Spottiswoode, William. Sketch of, with Portrait xiv 105 



Sunlight, Sea, and Sky ii 50 



Springer, R. Sounds of Nature, Mysterious xvii 772 



Springs and Wells, Overflowing of. J. T. Trowbridge (Cor.) xvi 266 



and Wells, Why do, overflow ? N. W. Green xvi 71 



and Wells, Why do, overflow ? J. J. Skinner xvi 397 



Spouting. G. H. Colton (Cor.) xix 554 



Squirrel, Blood-sucking (Misc.) iii 399 ; xiv 838 



-Pest (Misc.) ii 382 



Squirrels, Varieties of Colors in (Misc.) xvii 862 



Stained-Glass Windows (Misc.) xvi 141 



Stallo, J. B. Notice of Articles on Primary Concepts, etc. (Ed. 



Tab.) iii 771 



Primary Concepts of Modern Physics iii 705 ; iv 92, 219, 349 



Stallo's Book, Announcement of (Ed. Tab.) xx 409 



Stammering (Misc.) xviii 711 



and its Causes (Misc.) xvi 863 



of the Vocal Cords (Misc.) xvii 141 



Stanley, Dean. Lyell, Discourse on the Death of vii 90 



Stanley's, Dean, Sermon on Lyell (Ed. Tab.) vii 113 



Stanley's Expedition (Misc.) viii 246 



Trip down the Congo (Misc.) xii 635 



Star, New, in Constellation of the Swan. A. Guillemin xi 59 



or Star-Mist. R. A. Proctor xii 148 



Stark, A. B. Education, Place of English in Higher xiv 81 



Stars, Binary (Misc.) i 759 



Distances of the. C. Flammarion v 423 



Drifting of the. R. A. Proctor ii 224 



Fixed. H. Farquhar xv 503 



Immensity of the (Misc.) xvi 140 



Motions of the i 541 



Planetary Rings and New. D. Vaughan xiv 466 



Shooting- (Misc.) ix 637 



Variable (Misc.) xv 427 



State, The Family and the (Ed. Tab.) xi 370 



Stature, Human (Misc.) xii 508 



Steam, Apotheosis of. J. S. Hittell ix 430 



-Boilers, Deposits in (Misc.) v 124 



Economizing the Heat of Waste (Misc.) vi 763 



Economy in the Use of (Misc.) x 382 



-Engine, A New Type of (Misc.) xii 115 



8 



