MEDICINE, HYGIENE, PHYSIOLOGY.--Instinct as a Guide to Health. _Felix L. Oswald, M.D._ 5, 517.--Medical Practice in Damaraland. _G. G. Buettner._ 5, 526.--Cause of Acquired Immunity from Infectious Diseases. _James Law, F.R.C.V.S._ 15, 97.--Health of United States Army. _B. F. Pope, M.D._ 15, 112.--Yellow Fever Prevention. _Joseph Holt, M.D._ 15, 118.--The Plumbers. President Allison's Circular. _A. N. Bell._ 15, 121.--Impure Air and Unhealthy Occupations, etc. _C. W. Chancellor, M.D._ 15, 125.--State Boards of Health of the United States. _G. P. Conn._ 15, 133.--Crime and Insanity. 16, 249.--Sanitary House Furnishing. _Glenn Brown, A.A.I.A._ 19, 154. MISCELLANEOUS.--Lessons of the America's Cup Races. _J. Heslop._ 12, 498. MILITARY.--The Increasing Curse of European Militancy. _Alfred Russell Wallace._ 5, 521--The Musket as a Social Force. _John McElroy._ 5, 485.--The Grand Army of the Republic in Massachusetts. _Past Commander-in-Chief George S. Merrill._ 8, 113. MUSIC.--Chinese Music, etc. 20, 33.--Handel's "Messiah." 20, 34.--Technical Drill. 20, 36.--Opera Sung by Americans. 20, 37. NATURAL HISTORY.--Will the Land become a Desert? _Joseph Edgar Chamberlain._ 7, 532.--Pine Trees of Florida. 12, 581.--Acclimatization. _Professor Rudolph Virchow._ 5, 507. POLITICS. ECONOMICS.--Need and Nature of Civil Service Reform. _Dorman B. Eaton_. 4, 171.--Recent Experiments in State Taxation _H. J. Ten Eyck._ 5, 460.--Discrimination in Railway Rates. _Gerrit L. Lansing._ 5, 494.--Influence of Inventions on Civilization. _C. Smith._ 5, 474.--Irish Home Rule Agitation: Its History and Issues. _Rev. H. O. Hewitt._ 8, 157.--The Congo and the President's Message. _John A. Kasson._ 13, 119.--Race and the Solid South. _Cassius M. Clay._ 13, 134.--America's Land Question. _A. J. Desmond._ 13, 153.--England and Ireland. _Henry George._ 13, 185.--Disintegration of Canada. _Dr. Prosper Bender._ 2, 144.--The Chinese Immigration Discussion. _Frances E. Sheldon._ 14, 113.--Benefits of Chinese Immigration. _John S. Hittell._ 14, 120.--German Expatriation Treaty. _A. A. Sargent._ 14, 148.--The Coming Contests of the World. 16, 164.--An Anglo-Saxon Alliance. _J. Redpath Dougall._ 16, 190. RECREATION AND AMUSEMENT.--Around the World on a Bicycle. _Thomas Stevens._ 12, 506.--Croquet in Elyria. _W. F. Hurlbert._ 12, 526.--Cruise of the "Philoon." _James F. Jerome._ 12, 548.--Recollections of Mardi Gras. _M. R. Dodge._ 12, 566. SCIENCE AND INVENTIONS.--Bishop's Ring around the Sun. _W. M. Davis._ 5, 466.--Acclimatization. _Prof. Rudolph Virchow._ 5, 507.--The Problem of Photography in Color. _Prof. O. N. Rood._ 5, 531.--Improvement of East River and Hell Gate. _Gen. John Newton._ 5, 433.--The Modern Ice-Yacht. _C. L. Norton._ 12, 536.--Some Fallacies of Science. "_Ouida._" 13, 137.--Hygiene in Dwellings. _G. N. Bell._ 15, 151. TRAVEL AND DESCRIPTION.--Hints from Japanese Homes. _C. R. D._ 12, 575.--A Vacation in the Tropics. 12, 581.