I. Architectural.—­The New Labor Exchange in Paris.—­With views of the interior and exterior of the building

II.  Electrical.—­The Construction and Maintenance of Underground
      Circuits.—­By S.B.  Fowler.—­A comprehensive article,
      discussing at length the various devices for protecting underground
      circuits, methods of inserting the cables, etc.

III.  Engineering.—­Railroads to the Clouds.—­Sketches of a number
      of mountain railroads

IV.  Marine Engineering.—­The French Armored Turret Ship
      the Marceau.—­1 engraving.—­A full description of the vessel, giving
      dimensions and cost

A Review of Marine Engineering during the Past Decade.—­A paper read before the Institution of Mechanical Engineers by Mr. Alfred Blechynben, of Barrow-in-Furness.—­This paper, which is continued from Supplement No. 820, treats on steam pipes, feed water heating, twin screws, etc.

V. Miscellaneous.—­The Little House.—­An article giving various
      hints about the arrangement and management of small
      dwellings, with special view to the best sanitary arrangements

      Stilt Walking.—­A sketch, with engraving, of Sylvain Dornon,
      the stilt walker of Landes

      Remains of a Roman Villa in England

      Gum Arabic and its Modern Substitutes.—­A continuation of a
      paper by Dr. S. Rideal and W.E.  Youle.—­With 26 tables

      A New Method of Extinguishing Fires.—­Invented by George
      Dickson and David A. Jones, of Toronto, Canada.—­Apparatus designed
      to utilize a mixture of water and liquefied carbonic acid

VI.  Medicine and Hygiene.—­The Hygienic Treatment of
      Obesity.—­By Dr. Paul Chebon.—­Methods of eating, drinking,
      and exercising for the purpose of reducing fat.—­An extended
      article, giving valuable information to people troubled with too
      much flesh

VII.  Photography.—­Spectroscopic Determination of the Sensitiveness
      of Dry Plates.—­A full description of the new plan of
      Mr. G.F.  Williams, for determining the sensitiveness of dry
      plates by the use of a small direct vision pocket spectroscope

VIII.  Physics.—­A Physical Laboratory Indicator.—­By J.W. 
      Moore, of Lafayette College.—­1 engraving.—­This is a modification
      of the old peg board adapted to use in the laboratory.—­It indicates
      the names of the members of the class, contains a full
      list of the experiments to be performed, refers the student
      to the book and page where information in reference to experiments
      or apparatus may be found, it shows what experiments
      are to be performed by each student at a given time, etc.