involving the lives of 35,000 people

X. MILITARY ENGINEERING.--The Military Engineer and His
Work.--By Col. W.R. KING.--A Sibley College lecture, treating
of the special problems In fortifications, sieges, and the more
pacific work of surveys and explorations

XI. MINERALOGY.--Natural Sulphide of Gold.--By T.W.T.
ATHERTON.--A probable new occurrence of gold

XII. NATURAL HISTORY.--The Living Jerboa in the Zoological
Garden of Berlin.--A rare rodent from South Africa, one seldom
seen alive in captivity.--5 illustrations

XIII. NAVAL ENGINEERING.--Twenty-four Knot Steamers.--The possibility of
fast ships for long voyages.--The prospects and difficulties

XIV. RAILROAD ENGINEERING.--A Steam Street Railway Motor.--A
noiseless motor built of steel on trial in Chicago.--1 illustration

XV. SANITARY ENGINEERING.--Some Means of Purifying
Water.--Different filtering processes and the subsidence treatment
of water

XVI. TECHNOLOGY.--Action of Caustic Soda on Wood.--By M.H.
TAUSS.--Direct experiments on the action of lye on wood at various
pressures

Burning Brick with Crude Oil Fuel.--The use of petroleum in
brick kilns.--Its advantages, cleanliness, and cheapness.