Cambridge and London: Printed, at the Pitt Press By John Smith for J. & J. Deighton, Cambridge and John W. Parker, West Strand London 1834. viii, 157 pages. 5 1/2 x 8 1/8 inches (8vo). Publisher's cloth with remnants of paper spine label. Some fading to spine and mottled fading. Textblock untrimmed. Bright and clean internally. Spine professionally reinforced preserving original label and spine. Nice partial watermark on front pastedown "MILL" and "1832" in reverse. Very Good. Cloth. 
Stated third edition, after at least one printing in the previous year. William Ellery Channing's copy with his 1842 library bookplate on front pastedown and his signature at top of the title page. Small red nameplate of Sydney Ross (Herschel bibliographer and a book collector in his own right) also on front pastedown.
Sedgwick was one of the founders of modern geology, and counted Darwin as one of his students. Here he has expanded on some of his lectures on education, hoping to shed some additional light on the subject.
"William Ellery Channing (April 7, 1780 – October 2, 1842) was the foremost Unitarian preacher in the United States in the early nineteenth century and along with Andrews Norton, (1786-1853), one of Unitarianism's leading theologians. He was known for his articulate and impassioned sermons and public speeches, and as a prominent thinker in the liberal theology of the day." (wiki)