This section is from the book "The Gardener V1", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
"We have received from Messrs Peter Law-son & Son a new Cucumber with the above name, which appears to be as near perfection as a Cucumber can be. It grows from 18 to 24 inches long, very round and perfectly smooth, spineless, and of a dark-green colour. The rind is very thin and the seed-vessels are very small; the flesh solid yet tender, and in flavour what a Cucumber should be. The heel, often a great defect in Cucumbers, is in this variety perfect. It is a seedling from a variety known as Dean's Early Prolific, which Mr William Thomson described as "the most perfect Cucumber he had seen." Both deserve extensive cultivation, and are extremely valuable - winter kinds being so very prolific - and are equally desirable for summer work.