35. Daniel Shattuck, new house measured plastering, 970 yards, 1shilling/yard including lathing Jan. 7, 1851
36. John Hosmer bounds of woodlot Feb. 5, 1851
37. Estimation? Of compass as observed Feb. 7, 1851 at 9 AM (this after having been estimated at 9:30 the evening before) = 9 5/8 degree W
38. True Meridian described
True Meridian (by HT)
For a detailed description of how Thoreau measured the angular correction required between magnetic and geodetic north, see the discussion in chapter six of “Thoreau The Land Surveyor” by Patrick Chura.http://www.upf.com/book.asp?id=CHURA001
Found the direction of the Pole Star with greatest Western elongation (1 degree 58½’)? At 9h, 26m PM! Feb 7th 1851.
It coincides with a line drawn from the SE corner of the stone post on the E side of our west most front gate, to the S side of the first door on the W side of the depot.
Between 4 and 5 o’clock the next day, I found the above line again by my compass,
N 7 7/8-E hence var. of my compass 1 degree 58 ½’ = approx 9 7/8 degree – W
Says Mag. north var equals 9 7/8 degree 12 M 17 s
39, 40, 41. White Pond Feb. 17, 1851
http://www.concordlibrary.org/scollect/Thoreau_surveys/148.htm
42. Cyrus Stowe’s Swamp lot surveyed Feb. 20 & 27, 1851
http://www.concordlibrary.org/scollect/Thoreau_surveys/122.htm
43. Cyrus Stow’s Woodlot in the East Part of Concord Mass on Pine Hill, Feb. 27 to March 3, 1851 in the rearof Joseph Merriam’s house beginning at the southwest corner
http://www.concordlibrary.org/scollect/Thoreau_surveys/121a.htm
45. Plan of Land Owned by James McCafferty, in the East Part of Concord, Mass. … March & April 1851 Three lots of land.
http://www.concordlibrary.org/scollect/Thoreau_surveys/85a.htm
http://www.concordlibrary.org/scollect/Thoreau_surveys/85b.htm
48. Timothy Brooks heirs list of house & fields Mar. 6, 13, 14, 15, 21, 22 and 25, 1851
49. Francis Monroe et al new street across the RR land beginning at SE post of porch of depot
50. Thomas Lord Surveyed land for the factory Apr. 12, 1851
http://www.concordlibrary.org/scollect/Thoreau_surveys/78.htm
52. Tillage on Factory road adjacent land
53. Cyrus Stowe Land and a new street and house lots for the Back Road Apr. 19, 1851
http://www.concordlibrary.org/scollect/Thoreau_surveys/123.htm
54. County Commissioners-Plan series of monument & Burying ground tracts opposite court house ground Apr. 29, 1851
57. Court House & Town House – Difference bottom of Court House and the Court House fence
58. West Center School House May 24, 1851
59. Mrs. Barber – Found boundary line is near ground tangent?? Jun 2, 1851
Cont’d. James Wood Sr? Measured field for fence (sold to C. D. Brown)
60. Cont’d. w/ sketch
61. State of Mass – Roads from J. Hapgood’s House to Center of Acton Jun 17, 1851
Edmund Hosmer’s Farm in Concord Mass. … June 17, 18, & 21, 1851
60a Plan of Edmund Hosmer’s Farm in Concord Mass. … June 17, 18, & 21, 1851
http://www.concordlibrary.org/scollect/Thoreau_surveys/60a.htm
http://www.concordlibrary.org/scollect/Thoreau_surveys/60c.htm
http://www.concordlibrary.org/scollect/Thoreau_surveys/60b.htm
F. R. Cyrangus? Run line between him & ? According to a plan by Macbrand. Beginning on Lincoln Rd at the point in dispute between Cyrangus & how Jun 28, 1851
69. Acton/Concord Town Line …Sept. 15, 1851 Reestablished the line between Concord and Acton from a Pilot’s stone near railroad way and another near the Powder Mills etc, etc for a total of nine stones.
http://www.concordlibrary.org/scollect/Thoreau_surveys/1.htm
77. Reuben Brown – Surveyed part of woodlot on Fairhaven Hill Oct 22 and 23, 1851
(The spring roads bought of Abel Heywood). Beginning 205 chains westerly of westernmost angle. (listing of survey points)
http://www.concordlibrary.org/scollect/Thoreau_surveys/14a.htm
79. Cyrus & Arthur Mow Oct 28, 1851 2PM S 48 3/8 W 29.14 chains from a point on the road 8 rods NW of the old Peter Wheeler hall to Coburn’s Corner, F1 survey on C. Norris’ land.
http://www.concordlibrary.org/scollect/Thoreau_surveys/125a.htm
Samuel Barrett surveyed land lot Dec 6 1851 He selling the wood to Geo. Brooks. Surveyed with a view of surveying the whole written time. Area sold 6A 18P. The SW corner not calculated.
http://www.concordlibrary.org/scollect/Thoreau_surveys/5.htm
83. Samuel Barrett surveyed land lot Dec 6 1851 He selling the wood to Geo. Brooks. Surveyed with a view of surveying the whole written time. Area sold 6A 18P. The SW corner not calculated.
http://www.concordlibrary.org/scollect/Thoreau_surveys/5.htm
Trustees of the Ministerial Fund lotted off Miner’s Tenue Loehm SE part J Concand
Dec 8 & 9 1851
http://www.concordlibrary.org/scollect/Thoreau_surveys/90a.htm