no THE POPULAR SCIENCE MONTHLY. 



VOL. PAGE 



Sociology, Study of: 



XIII. Discipline iii 419 



XIV. Preparation in Biology iii 594 



XV. Preparation in Psychology Mental Science and Sociology . . iii 676 



XVI. Preparation in Psychology Psychology of the Sexes iv 30 



XVII. Conclusion. Transition of Institutions iv 129 



Soda a Remedy for Burns and Scalds. F. Peppercorne xx 663 



-Lakes of Wyoming (Misc.) viii 767 



Soil Analysis, Value of (Misc.) xx 566 



Nitrogen of (Misc.) v 765 



Relation of Local Diseases to the Nature of the (Misc.) ii 382 



Sanitary Relations of the. Max von Petteukofer xx 332, 468 



Soils, Action of Plaster on (Misc.) ii 251 



as Filters (Misc.) xvii 572 



Poisoned (Misc.) vi 637 



Solar Appendages, The (Ed. Tab.) xvi 121 



Machine, A (Misc.) xviii 283 



Photographs, New (Ed. Tab.) xii 748 



Radiation, Intensity of (Misc.) viii 252 



Spectrum, Experiments on (Misc.) i 631 



Spots, Father Secchi on (Misc.) vii 633 



System and its Neighbors. 0. B. Warring xvii 612 



System, F aye's Theory of the (Misc.) xviii 858 



Solaville, M. de. Duration of Human Life xx 95 



Soldering by Pressure (Misc.) xx 862 



Somerville, Mrs. Mary (Ed. Tab.) ii 500 



Somnambulism (Misc.) xix 711 



Sound and Fog-Signals (Misc.) viii 380 



find Radiant Heat. John Tyndall xx 650 



and Words, How, are produced. George M. Shaw xiii 43 



Controversy between Tyndall and Henry viii 477 



Controversy between Tyndall and Henry (Ed. Tab.) ix 751 



Experiments in xiv 65 



Experiments on (Misc.) ii 378 



into Light, Transformation of (Misc.) xviii 142 



Magnifying. Microphone (Ed. Tab.) xiii 367 



Mayer on (Misc.) ix 633 



Measuring Distances by (Misc.) ix 251 



-Producing Spider (Misc.) ix 383 



Refraction of (Misc.) viii 767 



-Signals (Misc.) xix 429 



The Motions of. J. Tyndall vii 410 



Tyndall on (Misc.) xiv 832 



Vibrations, Making, visible (Misc.) xiv 834 



Waterfalls sensitive to (Misc.) ii 383 



-Waves, Water-Waves and. J. N. Lockyer xiii 166 



-Waves. Wave- Action in Nature iii 1 



Sounding Apparatus, Improved Deep-Sea (Misc.) iv 255 



Soundings, W. Thomson on Deep-Sea (Misc.) xiv 119 



Sounds, Audible and Inaudible (Misc.) iii 781 



Discrimination and Memory of (Misc.) xvi 428 



