84 Equalization of Temperature, §c. 
low about six o’clock, day and night. The fact has also been 
noticed by a few British navigators. Capt. Beechy, after descri- 
bing the harbor of Papiete and of some other places on the north 
side of Otaheite, says, it is generally high water at half an hour 
after noon every day, and low water at six in the morning; at 
the same time he observes, in language which might mislead the 
reader if not understood with some qualifications, that the tides 
in all these harbors (of Otaheite) are very irregular. These irreg- 
ularities are, doubtless, what Messrs. Tyerman and Bennet call 
‘ irregular inundations” of the sea, which according to Mr. Ellis, 
are occasioned by the strong winds blowing for some time from 
one quarter, or the heavy swells of the sea coming from various 
directions. The fact is also confirmed by an intelligent corres- 
pondent, Mr. John Ball, of Troy, N. Y.,* who states, that during 
his three weeks’ stay at Tahiti, the tide was observed to rise about 
one foot, and always highest at twelve o’clock, noon and midnight ; 
and he adds, I was informed that this is always the case. Another 
writer, ‘nie remarks are published in the Journal, (from that of 
the Franklin Tnstitate adds to the testimony on this point the 
ving,—that Prof. Whewell states, that Lieut. Malden, who 
accompanied Lord Byron on his voyage to the Sandwich Islands 
in the British ship Blonde, in 1824-25, gives a similar account of 
the tides at Owyhee. But the language of Lieut. Malden is, 
that the tide was observed to rise about four feet, and to be high 
water at sunset, and low water at day light, being influenced by 
the sea and land breezes.” 
Arr. VI._—Equalization of Temperature and supply of air in 
rooms warmed by furnaces beneath ; in a letter to the editor, 
from James Borron, A. M., M. D. dated Fredericksburgh, Dee. 
25, 1837 
Dear Sir,—Havine amused many of my leisure hours with 
investigations into the best modes of applying heat to the warm- 
ing of houses, I send you the following as the most important re- 
sults which I obtained. Our own dwelt was warmed by an 
hot air “Bnsncte and to it I found the following objec: 
