A PRACTICAL TREATISE ON THE SCIENCE OF LAND AND ENGINEERING SURVEYING, LEVELLING, ESTIMATING QUANTITIES, &c. ON THE SCIENCE OF LAND AND ENGINEERING SURVEYING, LEVELLING, ESTIMATING QUANTITIES, &c. WITH A DESCRIPTION OF THE VARIOUS INSTRUMENTS REQUIRED, &c. WITH ILLUSTRATIONS. BY H. S. MERRETT, ARCHITECTURAL AND ENGINEERING SURVEYOR. FOURTH EDITION, REVISED AND CORRECTED WITH AN APPENDIX, BY GEORGE W. USILL, A.M.I.C.E., M.S.A., &c. E. & F. N. SPON, 125, STRAND, LONDON. |