Bulletin - Agricultural Experiment Station, University of Rhode Island Volume 1-14 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1889 Excerpt: ...side, while No. 14 stood alone near a building, which shaded it after three or four o'clock in the afternoon, but it had the full benefit of the early morning and midday sun. READINGS OP THE COMMON THERMOMETER IN THE CORNER OF THE HIVES, TAKEN THE DAY THEY WERE PREPARED. Time. No. 4. No. 14. 10 o'clock 73 74 12" 78 76 2" 81 76 4" 82 76 This was before artificial heat was applied. The difference in the heat received from the sun accounts for the change in the temperature, one (No. 4) receiving much less early in the morning, and the other (No. 14) receiving none shortly after noon. That night four thick stone bottles, each holding a half pint, were rilled with boiling water and placed back of the division board in hive No. 4. This was renewed each morning and evening until June 20, while a record was kept of the thermometer readings for the remainder of the month. The next morning before the water was renewed the common thermometer outside the brood nest in No. 4 stood at 68, while in No. 14 it was at 66. The artificial heat had apparently increased the temperature of the empty corner of the brood chamber leaving it at the end of twelve hours two or three degrees higher than the same space in the other hive. The thermometer among the bees of No. 4 showed a temperature of 86, both in the morning and at night, while in No. 14 it stood at 84 and 87. The records for the rest of the month showed that where the heat was used the average temperature of the cluster at night and in the morning was no higher, and that, when there was any difference between the two, the temperature of the cluster where the heat had been given was the lower. This is what might be expected, as it is well known that the cluster expands as the surrounding temperature rises, ...