Hyblaeis apibus florem depasta salicti,
Saepe levi _somnum_ suadebit inire susurro.
VIRG.

[2] May not the heat, and want of perspiration, depend on an
exhausted irritability of the subcutaneous vessels, which will be
accumulated by the method here recommended?

[3] Oxygen gas, according to the new Nomenclature.

[4] The fixed air, or carbonic acid gas, formed during the
combustion, having been separated by agitation in contact with lime
water.

[5] Strictly speaking, water is composed of the bases of these airs,
the greatest part of the caloric being given out on their union.

[6] Where manufactures are carried on to a great extent, the air is
rendered still worse, and every precaution ought to be used to
preserve the health of the inhabitants. Places where manufactures are
carried on, ought, therefore, to be constructed in such a manner as
to be very lofty, and capable of being easily ventilated.
Night-working is undoubtedly a perversion of the laws of nature,
renders the constitution feeble, and lays a foundation for bad health
and disease: for it not only gives no time for ventilation, and in
consequence the quantity of oxygen becomes more and more exhausted;
but the number of candles used, contributes very much to contaminate
the air. It has been found by experiment that a candle contaminates
more air than a man. By persons who are interested in the welfare of
the succeeding generations, night-work will never be urged, and it