Note 50 — PART XII. MATHEMATICS.

For further information on Surveying, and Reconnoitring, reference should be made to the highly-valued publication, entitled “A Treatise on Military Surveying, including Sketching in the Field, Plan Drawing, Levelling, Military Reconnoissance, &c.,” by Lieut.-Colonel Basil Jackson, containing a full account of every surveying instrument, and the right adaptation of them.