“ He saw no further active service, the rest of his life being devoted to the foundation of a complete science of military engineering and to the thorough organization and training of the corps of Royal Engineers. He was so successful that, though only a captain, he was allowed to act for two years as commanding royal engineer at Plymouth and given a special grant. The events of the Peninsular War having emphasized the need of a fully trained engineer corps, Pasley’s views were adopted by the war office, and he himself placed at the head of the new school of military engineering at Woolwich. ”

“ He published a work on Practical Architecture, and prepared an important treatise on The Practical Operations of a Siege (1829–1832) , which was translated into French (1847) . He became brevet colonel in 1830 and substantive colonel in 1831. From 1831–1834 the subject that engaged his leisure was that of standardization of coins, weights and measures, and he published a book on this in 1834. In 1838 he was presented with the freedom of the city of London for his services in removing sunken vessels from the bed of the Thames near Gravesend ”