Spirit Leveling Oregon Geological 1911
DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY BULLETIN 462 RESULTS OF SPIRIT LEVELING IN OREGON 1896 TO 1910, INCLUSIVE. R. B. MARSHALL, CHIEF GEOGRAPHER, DEPARTMENT OF THE INTERIOR UNITED STATES GEOLOGICAL SURVEY, WASHINGTON, 1911
Gray cover with black title. Secure binding with clean pages, mild cover soil with mild edge sun and light surface & corner crease. About 9 x 5-3/4 with 82 pages. Scarce!