CONTENTS.
XI
Structure of the capillaries.—Capillaries defined,—their size—Form of the capillary
network. - Vascularity of different parts. Have the minute vessels open mouths?
Serous vessels; parts in which the existence of blood-vessels is doubtful. Have the
capillaries membranous'parietes? 2. Circulation in the capillaries.—As viewed by
the microscope. Degree of resistance offered to, and rate of the blood’s motion in
the capillaries. The heart’s action the sole moving power. The red particles
themselves are passive, and are not arrested in the capillaries. Circulation of the
lymph globules in the capillaries. Vital turgescence. Effects of the application of
different substances to the capillaries. Their state in inflammation. Influence of
the nerves on the capillary circulation. Of the veins.—Auxiliaries of the venous
circulation,—the valves,—the heart. Influence of respiration on the venous circu¬
lation. Effects of obstruction to the circulation in the veins. Arterial and venous
plexuses. Erectile structures, • .... 206-245
Chap. V,—Of the action of the blood-vessels in the processes of absorption and
exudation, a. Of absorption.—Proofs of absorption independent of the lymphatics
and lacteals. Imbibition. Endosmosis. Time required for absorption by imbibi¬
tion into the capillaries. Mode of action of poisons. Passage of ingesta into the
secretions. Matters absorbed must be in solution. The laws of endosmosis modi¬
fied in the animal body. Absorption by organic attraction. Absorption aided by
the action of the heart. Influence of galvanism, of the nerves, and of plethora on
imbibition. Changes produced by the vessels on the matters absorbed. Cutaneous
absorption. Interstitial absorption. b. Of exhalation and exudation.—Exudation
and exhalation from physical causes. The process during life modified by organic
laws. Exudation of secretions. Sources of the globules of secretions, . 245-265
SECTION III.—Of the lymph and the lymphatic vessels.
Chap. I.—Of the lymph.—Physical and chemical properties of lymph. Human
lymph,—its microscopic characters. Lymph of the frog. Globules of the lymph.
Colour of lymph and chyle. Globules of the chyle, . . . 265-269
Chap. II.—Of the mode of origin and structure of the lymphatic vessels.—
Reticulated and cellular lymphatics. Have the lacteals open mouths? Structure of
the intestinal villi and of intestinal mucous membrane. The absorbent glands.
Structure of the absorbent vessels. Communication of the absorbents with the se¬
creting canals of glands, and with small veins. Terminations of the absorbents.
Lymphatic hearts, ....... 269-276
Chap. III.—Of the functions of the absorbents:—Source of the lymph. 1. Of the
absorption by the lymphatics and lacteals.—Proofs that these vessels absorb. Pecu¬
liarities of the lymphatic and lacteal absorption. Power by which it is effected.
2. Change effected by the lymphatic and lacteal vessels on their contents.—3. Motion
of the lymph and chyle.—The moving power. Rate of motion of the lymph and
chyle, ......... 276—281
BOOK III.
OF THE CHEMICAL CHANGES PRODUCED IN THE ORGANIC FLUIDS. AND
ORGANISED TEXTURES UNDER THE INFLUENCE OF THE VITAL LAWS.
Purely chemical processes. Organic chemical processes—assimilation.
SECTION I.—Of respiration.
Chap. I.—Of respiration in general.—The Atmosphere, Respirable and irrespirable
gases. Aquatic respiration. The respiratory movements. Volume of air respired.
Necessity of respiration to different animals, .... 281-290
Chap. II.—Of the respiratory apparatus.—Different forms of the respiratory appara¬
tus. In invertebrate animals. In vertebrate animals, . . . 291-294
Chap. III.—Of the respiration of man and animals.—1. Of respiration in the air.—
Changes produced in the air,—quantity of carbonic acid generated. Amount of
oxygen consumed. Changes produced in the proportion of the nitrogen in the air
by respiration. Respiration of cold-blooded animals. Comparison of the products
of the respiration of cold and warm blooded animals. 2. Of respiration in the
water.—Changes produced in the water by the respiration of fishes. Respiration
of fishes by the skin,—in the air. 3. Of the respiration of the embryo of animals.—
Respiration of the embryos of birds and insects, and of Mammalia. Blood of the
foetus. The liquor amnios, ....... 294-301
Chap. IV.—Of the changes which the blood undergoes in the lungs.—Differences