A man walks 3 miles per hour or 4 feet per second.

A horse trots 7 miles per hour or 10 feet per second.

A horse runs 20 miles per hour or 29 feet per second.

Steamboat runs 20 miles per hour or 26 feet per second.

Sailing vessel runs 10 miles per hour or 14 feet per second.

Rapid rivers flow 3 miles per hour or 4 feet per second.

A moderate wind blows 7 miles per hour or 10 feet per second.

A storm moves 36 miles per hour or 52 feet per second.

A hurricane moves 80 miles per hour or 117 feet per second.

A rifle ball 1000 miles per hour or 1466 feet per second.

Sound 743 miles per hour or 1142 feet per second.

Light, 192,000 miles per second.

Electricity, 288,000 miles per second.

QUANTITY OF OIL REQUIRED FOR DIFFERENT COLORS.

Heath & Miligan quote the following figures. They are color
manufacturers:

100 parts (weight) White Lead require 12 parts of oil.
100 parts (weight) Zinc White require 14 parts of oil.
100 parts (weight) Green Chrome require 15 parts of oil.
100 parts (weight) Chrome Yellow require 19 parts of oil.
100 parts (weight) Vermilion require 25 parts of oil.
100 parts (weight) Light Red require 31 parts of oil.
100 parts (weight) Madder Lake require 62 parts of oil.
100 parts (weight) Yellow Ochre require 66 parts of oil.
100 parts (weight) Light Ochre require 72 parts of oil.
100 parts (weight) Camels Brown require 75 parts of oil.
100 parts (weight) Brown Manganese require 87 parts of oil.
100 parts (weight) Terre Verte require 100 parts of oil.
100 parts (weight) Parisian Blue require 106 parts of oil.
100 parts (weight) Burnt Terreverte require 112 parts of oil.
100 parts (weight) Berlin Blue require 112 parts of oil.
100 parts (weight) Ivory Black require 112 parts of oil.
100 parts (weight) Cobalt require 125 parts of oil.
100 parts (weight) Florentine Brown require 150 parts of oil.
100 parts (weight) Burnt Terra Sienna require 181 parts of oil.
100 parts (weight) Raw Terra Sienna require 140 parts of oil.

According to this table, a hundred parts of the quick drying white lead
are ground with 12 parts of oil, and on the other hand slow drying ivory
black requires 112 parts of oil.

PAINTING.

1 gallon Priming Color will cover 50 superficial yards.
1 gallon White Zinc will cover 50 superficial yards.
1 gallon White Paint