CHEMISTRY AND NATURAL PHILOSOPHY.

1. Does any chemical combination take place between the porter and ale in a

pot of half-and-half upon mixture? Is there a galvanic current set up

between the pewter and the beer capable of destroying the equilibrium of

living bodies.

2. Explain the philosophical meaning of the sentence--"He cut away from the

crushers as quick as a flash of lightning through a gooseberry-bush."

3. There are two kinds of electricity, positive and negative; and these

have a pugnacious tendency. _A_, a student, goes up to the College

_positive_ he shall pass; _B_, an examiner, thinks his abilities

_negative_, and flummuxes him accordingly. _A_ afterwards meets _B_ alone,

in a retired spot, where there is no policeman, and, to use his own

expression, "takes out the change" upon _B_. In this case, which receives

the greatest shock--_A_'s "grinder," at hearing his pupil was plucked, or

_B_ for doing it?

4. The more crowded an assembly is, the greater quantity of carbonic acid

is evolved by its component members. State, upon actual experience, the

_per centage_ of this gas in the atmosphere of the following places:--The

Concerts d'Eté, the Swan in Hungerford Market, the pit of the Adelphi,

Hunt's Billiard Rooms, and the Colosseum during the period of its balls.

[Illustration]

Punch, or the London Charivari, Volume 1, August 14, 1841 · 第 16 / 68 题