e ascent of the smoke; by this
means they were kept clean, and did not grow dark in a few hours, as
the London lamps do, but continu'd bright till morning, and an
accidental stroke would generally break but a single pane, easily
repair'd.

I have sometimes wonder'd that the Londoners did not, from the effect
holes in the bottom of the globe lamps us'd at Vauxhall[91] have in
keeping them clean, learn to have such holes in their street lamps.
But, these holes being made for another purpose, viz., to communicate
flame more suddenly to the wick by a little flax hanging down thro'
them, the other use, of letting in air, seems not to have been thought
of; and therefore, after the lamps have been lit a few hours, the
streets of London are very poorly illuminated.

[90] See votes.

[91] Vauxhall Gardens, once a popular and fashionable
London resort, situated on the Thames above Lambeth. The
Gardens were closed in 1859, but they will always be
remembered because of Sir Roger de Coverley's visit to
them in the _Spectator_ and from the descriptions in
Smollett's _Humphry Clinker_ and Thackeray's _Vanity
Fair_.

The mention of these improvements puts me in mind of one I propos'd,
when in London, to Dr. Fothergill, who was among the best men I have
known, and a great promoter of useful projects. I had observ'd that
the streets, when dry, were never swept, and the light dust carried
away; but it was suffer'd to accumulate till wet weather reduc'd it to
mud, and then, after lying some days so deep on the pavement that
there was no crossing but in paths kept clean by poor people with
brooms, it was with great labour rak'd together and thrown up into
carts open above, the sides of which suffered some of the slush at
every jolt on the pavement to shake out and fall, sometimes to the
annoyance of foot-passengers. The reason given for not sweeping the
dusty streets was that the dust would fly into the windows of shops
and houses.

[Illustration: "a poor woman sweeping my pavement with a birch
broom"]

An accidental occurrence had instructed me how much sweeping might be
done in a little time. I found at my door in Craven-street,[92] one
morning, a poor woman sweeping my pavement with a birch broom; she
appeared very pale and feeble, as just come out of a fit of sickness.
I ask'd who employ'd her to sweep there; she said, "Nobody, but I am
very poor and in distress, and I sweeps before gentle-folks