Weale's Series of Scientific and Technical Works

by Crosby Lockwood and Son

By A. Arman 1/6

Mathematical Instruments:

Their Construction, Adjustment, Testing, and Use concisely Explained. By J. F. Heather, M.A., of the Royal Military Academy, Woolwich. Fourteenth Edition, Revised, with Additions, by A. T. Walmisley, M.I.C.E. Original Edition, in 1 vol., Illustrated 2/0

⁂ In ordering the above, be careful to say “Original Edition,” or give the number in the Series (32), to distinguish it from the Enlarged Edition in 3 vols. (as follows)—

Drawing and Measuring Instruments.

Including—I. Instruments employed in Geometrical and Mechanical Drawing, and in the Construction, Copying, and Measurement of Maps and Plans. II. Instruments used for the purposes of Accurate Measurement, and for Arithmetical Computations. By J. F. Heather, M.A. 1/6

Optical Instruments.

Including (more especially) Telescopes, Microscopes, and Apparatus for producing copies of Maps and Plans by Photography. By J. F. Heather, M.A. Illustrated 1/6

Surveying and Astronomical Instruments.