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United States Coast Survey.—Geographical Positions. Section I.-Massachusetts Bay. Sketch A.

Name of station. Latitude. Longitude, Azimuth. To station- Back azimuth. Distance. Distance. Distance,
o a or o a to o r * o or Metres: Yards. Miles,

Briggs.------------------- 42 10 00-50 || 70 44 36.20 325 41 29 Lewis---------------------- 145 42 39 4222.4 4617-5 2.62
312 41 48 Hatch --------------------- 132 43 39 5186.3 5671.6 3.22
North Marshfield, (Unitarian 42 08 28.15 70 44 08.34 281 53 32 Hatch --------------------- 101 55 05 3241.5 3544.8 2.01
spire.) 167 21 13 Briggs --------------------- 347 20 54 2920.2 3.193.4 1.81
Nantasket ----------------- 42 18 13.69 || 70 53 59.10 59 22 50 Blue Hill------------------- 239 14 24 20054.9 21931.4 12.46
202 50 24 Thompson's Hill ...--...----. 22 57 30 37053.6 40520.7 23.02

Prospect Waltham......... 42 23 16.85 || 71 14 54.38 || 329 30 17 Blue Hill------------------- 149 35 56 22722.7 24848.9 14.12
287 54 55 Nantasket------------------ 108 09 01 30213.1 33040.1 18.77

Nahant ------------------- 42 25 02.81 70 53 57.13 37 09 08 Blue Hill------------------- 217 00 40 28652.0 31333.0 17.80
0 12 17 Nantasket.----------------. 180 12 15 12621.8 13802.8 7.84

Prospect Hingham ......... 42 11 32.67 || 70 51 06.04 || 171 06 20 Nahant -------------------- 351 04 25 25299.6 27666.9 15.72
162. 14 23 Nantasket.----------------- 342 12 26 12993.1 || 14208.9 8.07

Powderhorn --------------. 42 24 02.72 71 01 30.96 18 10 39 Blue Hill-...--------- ------ 198 07 16 22103.6 24171.8 13.73
259 49 35 Nahant -------------------- 79 54 42 10540.3 || 11526.6 6.55

Dorchester Heights......... 42 20 01.45 || 71 02 14.85 23 28 37 Blue Hill------------------- 203 25 44 14781.3 | 16164.4 9.18
230 43 03 Nahant --------- ----------- 50 48 39 14699.6 | 16075.0 9.13

Deer Island ...............] 42 20 59.31 || 70 57 09.90 40 02 10 Blue Hill................... 219 55 52 20027.0 21900.9 12.44
133 28 56 Powderhorn ........ - - - - - - - - 313 26 00 82.27.2 8997.0 5.11

Corey's Hill..........----- 42 20 31.39 71 07 41.19 232 22 35 Powderhorn ---------------- 52 26 44 10688.9 11689.1 6.64
277 01 13 Dorchester Heights ......... 97 04 51 7526.5 8230.8 4.68

White's Hill............... 42 12 50.45 70 58 18.21 283 34 03 Prospect Hingham .......... 103 38 53 10199.7 | 11154.1 6.34 157 00 16 Dorchester Heights .........] 337 47 37 14360.0 15703-7 8.9%

United States Coast Survey.—Geographical Positions. Section 1–Massachusetts Bay. Sketch A.

Name of station. Latitude. Longitude. Azimuth, To station— Back azimuth. Distance, Distance. Distance,

- o o or o a ro o r ro o o or Metres. Yards. Miles,
East Weymouth Church..... 42 12 48.39 || 70 55' 09.97 292 38 11 Prospect Hingham ---------. 112 40 55 6063.5 6630.9 3.77
90 51 49 White's Hill........ ........! 270 49 43 43.17.7 4721.7 2.68
North Weymouth Church ... 42 1344-45 70 56 21.85 201 29 03 Nantasket.......... -------- 21 30 38 8928.9 9764-4 5.55
58 02 25 White's Hill....... .........! 238 00 47 3.144.8 3439.1 1.95

Weymouth, (flag on Great 42 14 57.37 70 56 1240 36 23 22 White's Hill................ 216 22 00 4863.6 5318.7 3.02
Hill.) 206 44 47 | Nantasket.................. 26 46 17 6783.6 || 7418.4 4.22
Weymouth, (pole on King 42 13 36.91 70 56 04.24 198 33 08 Nantasket------------------ 18 34 32 9008.4 9851.3 5.60
Oak Hill.) 144 26 36 Dorchester Heights ......... 324 22 25 14589.2 15954-3 9.07
Scituate Hill........ ... .... 42 14 12.64 70 49 30.08 140 22 19 Nantasket-------------- ... . . . .320 19 18 9659.7 10563-6 6.00
24 02 19 Prospect Hingham .......... 204 01 15 5403.9 5909.5 3.36

Hayden's Hotel............ 42 15 08.37 70 45 58.96 46 38 46 Prospect Hingham .......... 226 35 19 96.88.7 10595.3 6.02
| 117 28 55 Nantasket...............--. 297 25 12 12397.7 || 13557.8 7.70

Great Quincy------------.. 42 16 27.03 || 70 56 45.78 229 13 28 Nantasket------------------ 49. 15 20 5040.7 5512-4 3.13 319 20 53 Prospect Hingham.......... 139 24 41 11964.5 13084-0 7.43

Crow Point.--------------. 42 15 39.98 || 70 53 25.37 170 44 54 Nantasket...------- ........I 350 44 32 4805.2 5254.8 2.99 337 16 02 Prospect Hingham.......... 157 1736 8272.0 9046.0 5.14

Quincy, (stone church)...... 42 15 02.24 70 59 51.89 | 160 28 59 | Dorchester Heights ......... 340 27 23 97.95.0 107.11-5 6.09 298 09 03 || Prospect Hingham ---------. 118 14 56 13682.7 14963.0 8.50 Quincy, (black top church)..]-42 14 58.65 70 59 28.82 233 51 53 Great Quincy...... --------- 53 53 42 4625.6 5058-4 2.87 | 337 43 59 White's Hill.----...... ..... 157 44 46 4273.6 4673.5 2.66 Quincy, (chureh at Bent's 42 14 43.75 70 58 10.86 221 39 47 Nantasket------------------ 41 42 37 8673.8 9.485.4 5.39 Point.) - 2.45 45 White's Hill.----...----..... 182 45 40 3499.5 3827.0 2.20

[graphic]

Name of station, Latitude. Longitude. Azimuth. To station- Back azimuth. Distance. Distance. Distance. O - or - - -- O - no o a tr Metres. Yards. Miles. Hingham, (church on Great 42 12 36.34 70 52 43.37 || 311 1954 Prospect Hingham .......... 131 21 00 2973.9 3252.2 1.85 Plain.) 93 16 34 White's Hill.--------------- 273 12 49 7691.9 84.11.6 4.78 Sagamore Head, (signal)----| 42 16 22.45 70 5128.92 91 08: 33 Great Quincy--...----...... 271 05 00 7262.5 7942.1 4-51 134 56 38 Nantasket------------------ 314 54 57 4859.4 5314-1 3.02 Hingham, (new North 42 14 32-32 || 70 53 08.34 169 24 35 Crow Point.---------------- 349 24 24 2123.6 2322.3 1.32 church.) 125 23 56 Great Quincy--------------- 305 21 30 6111.6 66:3.5 3.80 Hingham, (old church)...... 42 14 26.70 || 70 52 53.85 162 17 25 | Crow Point....... ..........! 342 1704 2373.4 2595.5 1.47 124 57 18 Great Quincy----...-- ------ 304 54 42 6483.0 7089.6 4.03 Hingham, (cupola of Old 42 1449.75 70 52 01.50 | 128 52 40 Crow Point...... ----------- 308 51 44 2469-1 2700-1 1.53 Colony House.) 194 37 29 Sagamore Head.-----------. 14 37 51 2956.0 3232.6 1.84 Hingham, (Baker's Hill 42 14 33.92 || 70 54 07.37 60 59 34 White's Hill............---- 240 56 45 6578.2 7.193.7 4.09 signal.) 181 36 00 Nantasket ----------- ------ 1 36 06 6783-4 7418.1 4.2.2 Hingham, (Turkey Hill 42 1423.66 || 70 50 53.11 3 13 01 Prospect Hingham.......... 183 12 52 5283-8 5778.2 3.28 signal.) 149 0203 | Nantasket................. 328 59 58 8278.4 || 9053.0 5.14 Eaton's Hill (Mount Wal- 42 1542.07 || 70 59 32.36 238 28 16 Nantasket ...... ----------- 58 32 01 8954.3 9792.2 5.56 laston) Flag. 3.42 11 37 White's Hill..... ----------- 162 1227 5560.8 6081.1 3.46 Cat Hill Signal....... ......| 42 13 17-17 || 70 44 59.14 69 04 13 Prospect Hingham.......... 249 00 08 9011.9 9855-1 5.60 105 25 37 Scituate Hill...............] 285 22 35 6443.7 7046.6 4.00 Cohasset Church........... 42 14 33.63 || 70 47 52.87 300 37 07 Cat Hill Signal......------. 120 39 04 4629.1 5062.2 2.88 247 40 11 Hayden's Hotel........----. 67 41.28 2822.2 3086.3 1.75 Minot's Ledge Light-house... 42 16 09.16 70 45 13.56 356 26 17 Cat Hill Signal............. 17626 27 5316.8 5814.3 3.30 | 58 34 46 Scituate Hill...............! 238 31 54 6891.9 || 7536.8 4.28

[graphic]

United States Coast Survey.—Geographical Positions. Section 1—Massachusetts Bay. Sketch A.

Name of station. Latitude. Longitude. Azimuth. To station- Back azimuth. Distance. Distance. Distance,

- - O r tr o r or O r tr o r ro Mctres. Yards. Miles.
Scituate Light.-----....... 42 12 15.26 70 42 37-43 | 120 27 30 Cat Hill Signal............. 300 25 54 3770.1 4122.9 2.34
81 11 30 Scituate Unitarian Church...! 261 09 53 33.33.8 3645.8 2.07
Scituate, (Unitarian spire)... 42 11 58.68 70 45 01.03 123 50 24 Scituate Hill....------------ 303 47 23 7426.0 8120.9 4.62
84 33 33 | Prospect Hingham.......... 264. 29 27 84.12.0 91.99.1 5.23

Parker's Hill Signal........ 42 13 43.60 || 70 46 28-29 || 194 24 55 Hayden's Hotel............. 14 25 15 2700-9 53-6 1.68
57 38 51 Prospect Hingham..........] 237 3544 7542.8 8248.8 4.69

Forbes------------------. 42 15 25.85 || 71 01 17.89 || 171 16 47 Dorchester Heights......... 357 16 08 8602.1 94.07.0 5.35
242 4.2 18 Nantasket -----------------. 62 47 13 11308.2 || 12:366-3 7.03
Paine's Hill Observatory, 42 13 59.55 70 59 21.88 || 135 0303 Forbes-------------------- . 315 01 45 3763.0 4115.1 2.34
Braintree. 218 0945 || Great Quincy............... 38 11 30 5788.4 || 6330.0 3.60
Thayer's Hill, (chimney of 42 13 49.47 || 70 57 49.44 || 196 42 17 Great Quincy--------------- 16 43 00 5075.1 5550.0 3.15
yellow house,) Braintree. 206 22 51 Scituate Hill--------------- 86 28 27 11471-3 || 12544.7 7.13
Grape Island, (flag) -------- 42 16 05-27 || 70 55 06-10 || 288 40 13 Crow Point----------------- 108 41 21 2436.6 2664.6 1.51
201 10 19 Nantasket -----............! 21 11 04 4248.6 4646-1 2.64

Bunkin Island, (flag)....... 42 16 49.86 70 53 41.74 80 31 38 Great Quincy......--------- 260 29 34 4274.9 4674-9 2.66
171 15 38 Nantasket ----------------- 351 15 26 2616.8 2861.7 1.63

Pig Rock Beacon.--------- 42 16 42.05 || 70 56 01.55 | 168 51 00 Deer Island---------------- 348 50 15 8089.6 8846.6 5.03 2.24 45 24 Nantasket ----------------- 44 46 46 3982-8 4355.5 2.48

Atlantic House, (chimney)...] 42 16 01.01 || 70 50 31.90 95 23 10 Great Quincy--------------- 275 18 59 8604-1 94.09.2 5-35 * 337 01 45 Scituate Hill...------------- 157 02 27 3631.2 3971.0 2.26

Cohasset, (BlackRocksignal) 42 1606.54 70 49 07.28 93 29 00 Great Quincy--------------- 273 23 52 10524-7 || 11509.5 6.54 120 25 51 Nantasket. ---------------- 300 22 35 77.50.9 8476.2 4.79

g

Name of station. Latitude. Longitude. Azimuth. To station— Back azimuth. Distance. Distance. Distance.
O / or o a to o a wo o a zo Metres. Yards. Miles.
Hangman's Ledge, (sunken 42 1742.76 70 57 18.11 | 18146 32 Deer Island---------------- 1 46 37 6066.9 6634-6 3.78
beacon.) 122 13 38 Dorchester Heights......... 302 10 18 8029.9 8781.3 4.99
Squantum. ---------------. 42 18 11.91 || 71 00 20.51 | 180 37 02 Governor's Island........... 0 37 04 5381.9 5885.5 3.34
269 36 02 Nantasket ----------------- 89 40 18 8735.1 9552.5 5.43
Roxbury, (Sargent's observa- || 42 1840.75 71 05 20.37 136 39 01 Corey's Hill................ 316 37 27 4695.4 5134.8 2.92
tory.) 239 36 12 Dorchester Heights......... 59 38 16 4923-2 5383.9 3.06
Milton Mills, (tall-spired 42 1624.51 || 71 03:46.93 197 28 33 Dorchester Heights......... 17 29. 35 7017.3 7673.9 4-36
church.) 153 01 01 Sargent's Observatory....... 332 59 58 4716.8 5158.1 2.93

|

Milton, (old church)........ 42 15 10.33 71 04 29.34 156 05:42 Corey's Hill---------------- 336 03: 33 10836.3 11850.3 6.73
- 198 55 03 Dorchester Heights......... 1856 33 9495.1 | 10383.6 5.90
Wellington Hill, (flag)...... 42 16 57-22 || 71 05 23.04 || 154 25 47 Corey's Hill... ---...---...-- 334 24 14 78.25.6 801.1.1 4-55
217 09 12 Dorchester Heights......... 37 11 18 7132.3 7799.7 4.43
Neponset Village, (church)... 42 1709.61 || 71 0231.83 184 11 18 Dorchester Heights......... 4 11 29 5315.4 5812.8 3.30
237 24 36 Squantum ------------. .....] 57 26 04 3569.2 3903.2 2.23
Dorchester, (Dr. Codman's 42 17 24.85 71 0356.95 205 4842 Dorchester Heights......... 25 49 51 5367.0 5869.2 3.33
church.) 140 47 33 Sargent's Observatory....... 320 46 37 3022.0 3304.8 1-88
Dorchester, (flag on Com- 42 17 58.29 71 0217.18 18048 10 Dorchester Heights......... 0 48 12 3800.1 4155.7 2.36
mercial Point wharf.) 261 03 00 Squantum -------------- .... 81 04. 19 2705-2 2958.3 1.68
Dorchester, (summer-house 42 18 07.14 || 71 04 14.61 21751 19 Dorchester Heights.......... 37 52 39 4467.1 4885.1 2.78
on hill.) 268 24 20 Squantum............. .....| 88 26 58 5363.7 5865.6 3.33
Dorchester, (church with 42 1827.61 || 71 03:24.78 208 56 02 Dorchester Heights.......... 28 56 49 3.308.0 3617.5 2.00
clock.) 98 43 01 Sargent's Observatory..... ...] 278 41 43 2677.8 29:28.4 1.00

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