SURVEY OF MASSACHUSETTS, 69 
II. 
1833, April, By 2 chronometers west of Newburyport, Harris Street Church, - 1m 458,19 
1834, June, 2 6s “ - - ee 6s - 45 .32 
66 9 6c 6c 6é ee 66 (a3 - = 45 70 
Mean of 6 chronometers, - - - - - + 1™ 453.41 
Longitude of Newburyport,  - . . - - - — 45.46 
Longitude of Lowell, - . . < - - +. 59 .95 
By 28 chronometers compared with the State House, —- . . a2" -89 68 
6 st “ «© Newburyport, - - - 59 .95 
Mean of 34 chronometers, - - . . “ - + 59 .60 
Reduction to the church, - - - . - —_ 0 .38 
Longitude of the church by 34 chronometers, - - - + 0™ 595,22 
Or, from Greenwich, ” a « . - - 445 15.82 
Monomoy Point, or Cape Malabar, (Lighthouse.) For the Latitude. 
1831, February, 28 altitudes of © gave - » . . “ “ - 41° 88" 30".1 
66 24 66 % 46 “i . < “ “ « 29 8 
J 10 “ a Canis Majoris gave - - - - - 31 .6 
1835, June, 20 & o Urse Minoris * - - - - - 27 6 
66 7 66 fa m 66 & = a « « 38 .6 
66 6 6c a ™, 6c o - - - ° 28 12 
My 10 6 a Urse Minoris * - - - - 34 .2 
66 10 6c 66 66 6é ae . ~ - . 28 sf 
66 4. 66 o ML 66 a Py . o « 384 7 
be 10 66 oth 66 “i - ‘a a a 33 3 
a, .: * 6m 2, - - . - - 35 .5 
«“ 9.08 a M1, We. : w . : 30 .4 
“ 11 “ o Urs Minoris « - - - - - 82 2 
105 altitudes of © and Southern Stars, — - - - - 31”.11 
51 “ t Northern * . ~ - - 30 .06 
Mean of 156 observations, - “ - - - 41° 33’ 30”.8 
Monomoy Point, Lighthouse.) For the Longitude. 
1831, February, By 2 chronometers east of State House, - - - - - 4” 165.51 
II. 
1835, June, By 4 chronometers east of Barnstable Court House, - - - 1™ 158.17 
46 4 66 66 be be 6é ‘“ - me 13 51 
Mean of 8 chronometers, . “ - - - — - 4 34 
Longitude of Barnstable, . - “ “ = —8. 9.90 
Longitude of Monomoy, - - - - - - —4 “16 54 
Tl. 
The whole of the annular eclipse of the sun which happened February 12th, 1831, 
was observed by me at this Lighthouse; but, in consequence of clouds, only the begin- 
ning was visible in Dorchester. By combining the observations made there with those 
made at the Lighthouse on the beginning and end, and the formation and rupture of the 
ring, I deduced for the longitude of the Lighthouse — 4m 15'.5. 
VOL. IxX.—2] 
