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ADVERTISEMENT.

in the medical profession, for the scattered original essays from which it must have been compiled.

Physiology can only be adequately taught in Anatomical Theatres, when the Lectures of each year contain the discoveries of the preceding, and when the Lecturer turns from the actual demonstration of parts, to explain their uses. A treatise on Physiology, however excellent, can be of little service, except to those, who either are, or have been, engaged in such a course of study.

He who is acquainted with the healthy structure and functions of the body, is qualified to investigate disease. Anatomy is the first step in a medical education; Physiology the second; Pathology the third-without the two former, Medicine and Surgery would be empirical arts, founded upon no principles, continually changing to suit the cleverest theory of the day, and calculated to be as destructive, as they are now beneficial to mankind.

CONTENTS.

CHAPTER I.

INTRODUCTORY OBSERVATIONS.

Tendency of Physiological Studies.

Division of Matter into Organized and Unorganized

Meaning of the Term "Life"

Physical Characters of Organized Matter..

Chemical Principles of Organized Matter

Spontaneous Decomposition of dead Organized Matter

Of Antiseptic Substances

Of the Vital Phenomena.

Of the Properties of Life

Of Phenomena in Plants which imply Selection

‹Â Sensitive and Vegetative Functions combined in Animal

Life

CHAPTER II.

OF THE BLOOD.

Theory of the Circulation

Evidence adduced by Harvey

Differences of Arterial and Venous Blood

Coagulation of the Blood

Its Separation into Serum and Crassamentum

Of the Fibrin of the Blood...........

Of the Globules of the Blood.....

Of the Colouring Matter of the Blood

Causes which accelerate Coagulation

Causes which retard Coagulation..

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Distribution of Nerves in Muscles..

Action and Relaxation of Muscles unattended with a

Change in their Volume.

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Mechanism, by which the Chest admits of being alter-

Tendency of the Resilience of the Lungs to lessen the

atmospheric Pressure upon every Surface, which

they touch

Structure of the Heart

Nature of Arteries and Veins

Of the Flow of Blood into the Auricles

Suction produced by the Resilience of the Lungs

Effect of Inspiration on the Motion of the Blood, ....

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Action of the Heart not caused by Nervous Influence,

and in what degree under its controul.

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Relaxation of Arteries the Cause of Local Action, shown

by their becoming elongated and tortuous in parts

liable to determination of blood....

Cause of the Tortuousness of certain Veins....

Influence of Gravity on the Circulation

Of the Circulation in the Brain

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Bulk of Carbonic Acid formed, equal to, or less than, thei

Volume of Oxygen lost

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Effects of Water, Air, and other Substances, injected into

the Veins ....

Of Secretion in general.

Of Nutritive Secretion

Instance of Growth without a Nervous System

Influences which modify Nutritive Secretion

Of Functional Secretion...

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Influences which modify Functional Secretion. .. is, at

Where does Secretion originate?

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Heat liberated at the time when the Blood becomes: 0

venous

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Quantity thus produced comparatively trivial .

Opinions respecting the Source of Animal Heat

Evidence that foreign Substances are directly imbibed

Of Hunger and Thirst; of the Mastication of Food,

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