Prime, Samuel Irenaeus. The Power of Prayer illustrated in the wonderful displays of Divine Grace at the Fulton Street and other meetings in New York and elsewhere. London: Sampson, Low, Son, & Co., 1860. Dual imprint, the other being Edinburgh: Alexander Strahan & Co.
Limp unbacked cloth stamped in blind, gilt title on front, edges worn, 4 1/2 x 6 3/4 inches, recent owner's name inside front cover, 1860 gift inscription on the half title page, 145 clean pp. with a 3 pp. publisher's catalogue. Fair. Stamped cloth. 
Prime credits Rev. L. G. Bingham, Rev. Dr. Plummer and Rev. Dr. Murray as providing eye-witness material that is included in the book. His preface is dated November 27, 1858. Editions of the book published in 1859 have about 350 pp.
This imprint is not in Roberts, but his record of the more-common New York edition is his no. 4386. The title differs from the common editions in that it does not include the ending "in 1857 and 1858." Although the title page says "fiftieth thousand," we are unable to locate another copy. We do find one copy with the same title and year, but with the imprint Halifax: Milner and Sowerby, but with 383 pp. That copy is in the University of Cambridge library.
This looks like perhaps an abridgment of the book printed in cheap form for evangelistic use. Either that or a reprinting of a very early issue that was later expanded. Have a look at the table of contents in the pictures and see what you make of it.
Samuel Irenaeus Prime (1812-1885), b. in Ballston, N.Y.; graduated at Williams College in 1829, entered Princeton but suffered from illness and did not complete his studies. After pastoring several churches he became editor of the “New York Observer”, and also served as Secretary of the American Bible Society. Prime was Vice President and Director of the American Tract Society and of the American and Foreign Christian Union, as well as a trustee or board member of a large number of beneficent or religious organizations. He wrote over 40 books and contributed frequently to the periodicals of his day.