cular actions are the proximate effect.

This action of sneezing frequently precedes common respiration in new-born
children, but I believe not always; as like the latter it cannot have been
previously acquired in the uterus.

It is produced in some people by sudden light, as by looking up at the sky
in a morning, when they come out of a gloomy bed-chamber. It then becomes
an associate action, and belongs to Class IV. 1. 2. 2.

M. M. When it is exerted to excess it may be cured by snuffing starch up
the nostrils. See Class I. 1. 2. 13.

4. _Anhelitus._ Panting. The quick and laborious breathing of running
people, who are not accustomed to violent exercise, is occasioned by the
too great conflux of blood to the lungs. As the sanguiferous system, as
well as the absorbent system, is furnished in many parts of its course with
valves, which in general prevent the retrograde movement of their contained
fluids; and as all these vessels, in some part of their course, lie in
contact with the muscles, which are brought into action in running, it
follows that the blood must be accelerated by the intermitted swelling of
the bellies of the muscles moving over them.

The difficulty of breathing, with which, very fat people are immediately
affected on exercise, is owing to the pressure of the accumulated fat on
the veins, arteries, and lymphatics; and which, by distending the skin,
occasions it to act as a tight bandage on the whole surface of the body.
Hence when the muscles are excited into quicker action, the progress of the
blood in the veins, and of the lymph and chyle in the absorbent system, is
urged on with much greater force, as under an artificial bandage on a limb,
explained in Art. IV. 2. 10. and in Sect. XXXIII. 3. 2. Hence the
circulation is instantly quickened to a great degree, and the difficulty of
breathing is the consequence of a more rapid circulation through the lungs.
The increased secretion of the perspirable matter is another consequence of
this rapid circulation; fat people, when at rest, are believed to perspire
less than others, which may be gathered from their generally having more
liquid stools, more and paler urine, and to their frequently taking less
food than many thin people; and lastly, from the perspiration of fat people
being generally more inodorous than that of lean ones; but when corpulent
people are put in motion, the sweat stands in drops on their skins, and
they "lard the ground" as they ru