Xll

CONTENTS.

Operation of medicines by nervous agency

Proofs that some substances act independently of absorptionAgency of the nervous system.— (Views of Marshall Hall , Grainger,and Dutrochet )

27

27

28

Parts affected by the remote action of medicines . . .. .. . . 30

Of the nature or quality of the actions induced by medicines .. .. 32

Stimulants . . .. . . . . . . .... 32

Contra-stimulants or sedatives .. .. .. .. .. 32

Alteratives . . .. .. .. .. .. .... 32

Brunonian theory .. .. .. . . . . .. . . 32

Theory of contra-stimulus—( new Italian doctrine) .. .. .. 33

Circumstances which modify the effects of medicines .. . . .. 34

Relating to the medicine . . .. .. .. .. .... 34

Relating to the organism .. .. .. . . .. .. 35

Therapeutical effects of medicines .. .. .. .. .... 41

Mode of production .. . . . . .. .. .. . . 41

By the influence of a medicine over the causes of disease .. 41

By modifying the actions of one or more parts of the system . . 41

Fundamental methods of cure . . .. .. .. .... 42

Antipathia .. .. .. .. .. .. .. 42

Homceopathia .. .. .. .. .. .... 43

Allopathia ( counter-irritation, revulsion, derivation) .. .. 45

Parts to which medicines are appliedApplications to the skin

By the enepidermic methodBy the iatraleptic method

By the endermic or emplastro-endermic methodApplications to the mucous membranesGastropulmonary membraneUrino -genital membrane ..

Applications to the serous membranes . .Applications to ulcers, wounds, and abscessesInjection of medicines into the veins ( infusion ) .Agency of galvanism

48

48

48

48

49

5050

53

545454

Classification of medicines . . .. .. . . .. .... 56

Empirical arrangements .. . . .. .. . . .. 57

Rational arrangements . . . . . . .. .. .... 58

Classifications founded on the sensible qualities (colour, taste,

and odour) . . . . . . . . . . . . . . 58

Classifications founded on natural-historical properties .. .. 59

Natural-historical classifications of organized beings .. 59

Artificial method of Linneus . . .. .... 59

Methods founded on the parts of organized beings

employed .. . . .. .. . . .. 60

Classification of inorganized substances, according to theircrystalline forms . . . . .... 60

Classifications founded on the chemical constituents .. . . 61

Classifications founded on the physiological effects of medicines 62According to the nature or quality of the effect .. . . 62'

According to Brunonian principles .. .. .. .. 64