m mountains at the
distance of 200 miles round.

Lightning is reflected 150 to 200 miles.

1,000 cubic feet of 13 candle gas is equivalent to over 7 gals. of sperm
oil, 52.9 lbs. of tallow candles, and over 44 lbs. of sperm candles.

The time occupied by gas in traveling from a gas well (in
Pennsylvania) through 32 miles of pipe was 22 minutes, pressure at the
well was 55 lbs. per inch, pressure at discharge 49 lbs.

At birth, the beats of the pulse are from 165 to 104, and the
inspirations of breath from 70 to 23. From 15 to 20, the pulsations
are from 90 to 57, the inspirations, from 24 to 16; from 29 to 50, the
pulsations are 112 to 56, the inspirations 23 to 11. In usual states
it is 4 to 1. The action of the heart distributes 2 ozs. of blood from
70 to 80 times in a minute.

The mean heat of the human body is 98 degs. and of the skin 90 degs.
Tea and coffee are usually drank at 110 degs. The deepest coal mine
in England is at Killingworth, near Newcastle, and the mean annual
temperature at 400 yards below the surface is 77 degrees, and at 300
yards 70 degrees, while at the surface it is but 48 degrees, being 1
degree of increase for every 15 yards. This explains the origin of hot
springs, for at 3,300 yards the heat would be equal to boiling water,
taking 20 yards to a degree. The heat of the Bath waters is 116
degrees, hence they would appear to rise 1,320 yards.

Peron relates that at the depth of 2,144 feet in the sea the
thermometer falls to 45 degrees, when it is 86 degrees at the surface.

Swemberg and Fourier calculate the temperature of the celestial spaces
at 50 degrees centigrade below freezing.

In Northern Siberia the ground is frozen permanently to the depth of
660 feet, and only thaws to the extent of 3 or 4 feet in summer. Below
660 feet internal heat begins.

River water contains about 30 grs. of solid matter in every cubic
foot. Fresh water springs of great size abound under the sea. Perhaps
the most remarkable springs exist in California, where they are noted
for producing sulphuric acid, ink, and other remarkable products.

St. Winifred's Well, in England, evolves 120 tons of water per minute,
furnishing abundant water power to drive 11 mills within little more
than a mile.

The French removed a red granite column 95 feet high, weighing 210
tons, from Thebes, and carried it to Paris. The display of costly
architectural ruins at Thebes is one of the most astonishing to be
seen anywhe