Congleton, Henry Brooke Parne!! A TREATISE ON ROAD S; WHEREIN THE PRINCIPLES ON WHICH ROADS SHOULD ARE EXPLAINED AND ILLUSTRATED, BY THE PLANS, SPECIFICATIONS, AND CONTRACTS MADE USE OF BY THOMAS TELFORD, ESQ. ON THE HOLYHEAD ROAD. BY THE RIGHT HONOURABLE SIR HENRY PARNELL, BART. HONORARY MEMBER OF THE INSTITUTION OF CIVIL ENGINEERS, LONDON: PRINTED FOR LONGMAN, REES, ORME, BROWN, GREEN & LONGMAN, TABLE OF CONTENTS. Bogs and Marsh Ground Materials - Exposure-Evaporation Machine for Measuring the Power of Traction |