Considerations on the subject of a communication between the Atlantic and Pacific Oceans by means of a ship-canal across the isthmus, which connects North and South America, and the best means of effecting it, and permanently securing its benefits for the world at large, by means of a co-operation between individuals or companies of different nations under the patronage of their respective governments - Ratcliff, Samuel (Printed and published at the Metropolitan Office, 1836)
Attributed to Samuel Ratcliff by Halkett & Laing. - Goldsmiths'-Kress no. 29600.27. - OCLC, 17460668. - Reproduction of original from Kress Library of Business and Economics, Harvard University