DISCUSSION OF TIDES IN BOSTON HARBOR. 
TaBLe V—Showing the value of C’ sin 2 v Dt v (104) in tenths of minutes for each degree of declination 
and for each second of the value of Dt v. 
Values of Dev. 
Dec. | | | 
) qr | 2” 31 4 5 6” via gY | gu 10” 11” | 12” 13” 14" | 15” 16” 1 
| z| | Ne | 
o | | | | 
Lee | 3 | 8 4 EON BS 5 5 6 6 7 
| 6 7 8 | 9 | to ak |! ee) Tey |. 783 
3 | 1 ON sQ | th) 1 | | es ay | Te) Te [Png 
4 | | | | 12 | 13 | 15 | 16 | 18 | 20 | Qt | 23 | 25 | 26 
5 | 15} 16 | 19: || 205) 22) || 25°) 26) | 29) au} ae 
6 | UGH) 185/20) ||) 23) 1) 25RD Tan SON 32ie |p esd feeszin lindo) 
| i) |) BIL PRY ey | Pid) Bl) SBS I see ay |) Bh | ae 
8 | : Oy, GA 1 bye By | 8B | Se} cM | Ze | A | AO | aD 
| | 20 | 24 | 27 | 3 Bye) Be |) cil |] ee | ee |) a |] a 
10 | | 22 | 26 | 30. | 33 7 | 41°] 46 | 49 || 53 | 57 || 60 
leet ee ay ion so |) 6o || Be | Sh | 6B | Be | Ay) 2 | aD |) ee |) ae | Ge Ge 
12) | BOOT |) estes e386) | d0l| (440) 4g ies4e |) Seee| mesielG zie) 
13 | 24 | 29 | 34 | 39 | 43 | 47 | 53 | 58 | G3 | G8 | 72 | 78 
14 | a) || Ga |) Sl} S68 | 2) 25 |) Bl |) Be I Ge) Get we ll wa 
15 | 16 | 22 | 27 | 33 | 38 | 44 | 49 | 55 | 60 | c6 | m1 | 7 | 82 
1B. |} oo 12 | iy |) GE |) Os |) hy at ear |) Be) BEY RN a) aa GR || ee 4 
7 Gj) 1m | Te || Bs |) By |) Be i) 2 I ao | 6) GL | Ge | we |) eo | ea 
18 | 6 | 13 | 19 | 26 | 32 | 30 | 45 | 52 | 58 | 64 | 71 | 78 | e4 | 90 
19 69/13) |) 20) |) sez) 73373) 40) || ee sb GO) |) (67) ozs es. | 86 
20 || 1 1) Ol || BE | 35 | 42 | 49 | 57 | G3 | 70 | 78 | 86 | 90 
21 | 7 | 15 | 22 | 29 | 36 | 44 | 51 | 59 | Go | 73 | 81 | 90 | 
22 G |) ie | BS |e | ge | Aa || See GT |G aa |) GB | 
23 GY) S|) 1 yk ay eae ey GRY Ne Fe) 
24] 8 | 16 | 24 | 32 | 40 | 49 TGS ial e73) jee | 
OB i ht ai! | OG; | BES |) ae | Bi) |) Bae |) | 
| 26 | 8 | 17 | 26 | 34 | 43 | se | ot | 69 | | .| 
QT 9 | 18 | 27 | 35 | 44 | 53 | 63 | | 
28 ay} aie | Bee BIN Zar ea os | 
EDP | TO | PRB AB noe I) oot |} co || a0 Ea : 
| i | i 
Norr.—When the arguments have the same signs, the quantities are positive; when different signs, negative. 
TaBLE VI—Showing the value of L', and the part of L (99) depending upon 3', corresponding to any given 
value of the logarithmic tangent of 3’ ( 
] ] ] , 
L! Om. 1m. | 2m. 3m. | 4m. 5m. 6m. 7m. 8m. 9m. 
| | 
m. | 
Seer 6. 926 T. 227 7.403 | 7528 | 7.615 7. 704 7.771 7. 829 7. 380 | 
1 7. 926 7. 967 8.005 | 8.040 | 8. 072 8.101 8. 130 8.156 8. 181 8. 204 
2 8. 227 8. 248 8. 268 8. 238 | 8. 306 8. 324 8. 341 8. 357 8. 373 8. 388 
0 oO. 000 7. 926 8.227 | 8.403 | 8.528 &. 625 8.704 | 8.771 8. 830 8. 881 
10 8. 927 8. 969 9.006 | 9.042 | 9. 074 9. 104 9. 133 9.159 9.185 9. 209 
20 9. 231 97253 95274 it 95293 | 9.312 9. 333 9, 348 9. 365 9. 382 9. 398 
30 9. 413 9, 428 9, 442 | 9. 457 | 9. 470 | 9. 484 9. 497 9.510 9. 522 9.534 | 
Notr.—In the first division of the table 0m., 1m., 2m., &c., must be taken as tenths of a minute. 
