(SEUSS,DR.)illus. SECRETS OF THE DEEP [and] SECRETS OF THE DEEP VOLUME II by Old Captain Taylor. (Standard Oil): Essomarine 1935, 1936. 2 volumes, 8vo, pictorial wraps, 34p., small margin mend and crease to volume 2 else both VG+. A humorous look at yachting, illustrated in color by Seuss with large red, white and blue aquatints and featuring a sea creature whose face appears years later as the Cat In The Hat. BOTH VOLUMES ARE INSCRIBED BY SEUSS! Rarely found signed by Seuss. See Younger/Hirsch #'s 69-70.