but little to try it. A piece of glass can be placed in front of the
egg drawer, if preferred. If the heat goes down to 90, or rises at
times to 105, no harm is done. But it works well, and hatches, the
proof being that hundreds are in use. I did not give the plan as a
theory or an experiment. They are in practical use here, and work
alongside of the more expensive ones, and have been in use for four
years. To use a lamp attachment, all that is necessary is to have a
No. 2 burner lamp with a riveted sheet-iron chimney, the chimney
fitting over the flame, like an ordinary globe, and extending the
chimney (using an elbow) through the tank from the rear, ending in
front. It should be soldered at the tank. The heat from the lamp will
then pass through the chimney and consequently warm the surrounding
water.--_Rural New-Yorker._

[For description and illustrations of this incubator see SUPPLEMENT,
No. 630.]

* * * * *




THE PEAK OF TENERIFFE.


The Hon. Ralph Abercromby made a trip to the island of Teneriffe in
October, 1887, for the purpose of making some electrical and
meteorological observations, and now gives some of the results which
he obtained, which may be summarized as follows: The electrical
condition of the peak of Teneriffe was found to be the same as in