FOLLOWING SUBJECTS: Architecture, 13. Mechanics, 14. Electricity. 15. Pneumatics. and Decimal. 9. Trigonometry. 17. Hydraulics. and Painting AND OTHER USEFUL MATTER. Embellished with Twenty Copper-plates and Six Maps, neatly engraved. BY THOMAS HODSON. THIRD EDITION IN TWO VOLUMES. VOL. I. LONDON: |