508 
BAROMETER AND THE TIDES (Boston, 1892)—continwed. 
REPORT—1896. 
Average M ._. |Mean varia-| Maxi- | ean varia- 
number of tT ane tion of mum tion of 
— Tides c b 1g Tide from | varia- | Barometer 
affected in LWST predicted | tion of from 
one year aris height Tides average 
Ft. In. In. In. 
High Bar.—High Tides. 22 20°60 791 — “BT4 
TOW 350M ees 21 18-00 11:57 — 409 
Total and Means 43 19°30 9-74 — “291 
1893. 
High Bar.—Low Tides . 68 18°84 10°78 —- “B34 
Low,..255.) viligh)) s; 23 19°87 10:87 —- “407 
Total and Means 91 19°35 11°32 — 371 
High Bar.—High Tides . 42 20°73 9°26 — Hale 
Low Slow’ *:; 13 19°80 11°67 ~- 384 
‘Totaland Means . 55 20°27 10°46 —_ 351 
1894. 
High Bar.—Low Tides . 29 17-92 12°14 — “365 
Thow') 4,,,.° ue" .; 19 18°94 10:10 — 340 
Total and Means 48 18°43 11:12 — 352 
-High Bar.—High Tides . 31 20:09 977 — *Bb9 
how... ow. - % 5 16°28 8°60 — “316 
Total and Means 36 16°14 9:18 — B37 
1895. 
High Bar.—Low Tides . 48 18°70 10:37 —- 336 
Low , High ,, 12 20°32 10 00 — 545 
Total and Means 60 19°50 10-18 25 || ae 
High Bar.—High Tides . 33 21:07 11°82 — “381 
Owe «45 5 OW Ay; * a 11 18°48 10°54 — “488 
Total and Means, 437 44 19°75 11:18 — 434 
Out of 437 tides affected in the four years, an average of 110 a year, 259, 
or about 59 per cent., were lowered when the pressure of the atmosphere 
was increased, or raised when it was decreased below the average ; and 
178, or about 41 per cent., were influenced in the opposite direction. 
The tidal observations for Boston are taken from the register kept by 
the Harbour Master at Boston Dock. Theslight discrepancy between the 
figures as given in the above table, and those in the paper read at Ipswich 
Meeting, is due to the fact that a different method has been pursued in 
separating the tides affected by the pressure from those affected by the 
sind. 
