62
ELEMENTS OF MATERIA MEDICA.
Div.
1. Aqua Communis
2. Gummosa, mucilagi-
nosa
3. Farinosa, amylacea
4. Gelatiuosa
5. Albuminosa6- Saccharina
7. Pinguia—Oleosa
Div.
15. Alcalina1(3. Satina
17. Metalliea
18. Corpora simplicia,soli-
ds, non metalliea
19. Kalia sulphurata
20. Sapones
Schwartze's Classification.
Div.
8. Extractiva amara
9. Adstringentia seuTannica
10. iEtberea—Oleosa
11. Resinosa
12. Narcotica
13. Spirituosa
14. Acida
It will be observed that the author has not always founded his divi-sions on the chemical properties of medicines; some of them refer partlyor wholly to the effects produced by these agents on the body. Thenomenclature is not always perfect: thus, his seventeenth class is called“ Metalliea,” as if it alone contained metallic substances; whereas divi-sions fifteen and sixteen also contain them. Again, some of the divisions,for example “ Resinosa,” contain substances whose effects are most dis-similar ; while substances of analogous operation are placed in separatedivisions.
d. Classifications founded on the Physiological Effects of Medicines. —Asthe ultimate object of all our inquiries into the materia medica is to ob-tain a knowledge of the mode of operation of medicinal substances, itfollows, that the most desirable and useful, because the most practical,classification of these agents, would be that founded on the similarity oftheir effects. But so many difficulties exist in the way of producing suchan arrangement—so much remains yet to be determined with respect tothe nature of the modifications impressed on the organised tissues by theinfluence of medicines—that it must be evident to every one who atten-tively studies the subject, that in the present state of our knowledge nosuch classification can be satisfactorily effected.
Of the numerous arrangements of this kind which have been attempted,some arc founded on the nature , quality, or general character of theeffects; as in the following works:—
W. Cullen, M.D. Treatise of the Materia Medica. Edinburgh , 1789.
R Pearson, M.D. A Practical Synopsis of the Materia Alinientaria and MateriaMedica. London , 1808.
C. I. A. Schuiilque, Traite de Mature Medicale, 2 tom. Paris , 1818.
J. Arnemami, Chirurgische Arzueimittellehre, 6 Aufl. vind. A. Kraus. 1818.
J. Arnemann , praktische Arzueimittellehre, 0 Aufl. von L. A. Kraus. 1819.
T. Young, M.D. An Introduction to Medical Literature, art. Pharmacology, 2ndedit. 1823.
J. B. G. Barbier, Traite Elementaire de Mature Medicale, 2 n de dd. 3 tom. Paris , 1824.
N. Chapman, M.D. Elements of Therapeutics and Materia Medica, 4th ed. Philadel-phia , 1825.
Dr. Nuttall, Lancet, 1825-6, vol. ix. p. 578.
H. M. Edwards, and P. Vavasseur, M.D. Manuel de Maticre Medicale. Paris , 1826.
C. Sundelin, Haudbuch der speciellen Heilmittellehre, 2 Bde. 3te Aufl. 1833.
John Murray, M.D. A System of Materia Medica and Pharmacy, 5th edit. Edin-burgh. 1828.
A. Duncan, M.D. Physiological Classification of the Materia Medica. In the Sup-plement to the Edinburgh New Dispensatory, Uth ed. 1829.
J. Wendt, praktische Materia Medica. Breslau , 1830, 2 Aufl. 1833.
F. Foy, Cours de Pbarmacologie, 2 tom. Paris , 1831.
A. T. Thomson, M.D. Elements of Materia.and Therapeutics, 2 vols. 1832 : 2nd cd.1 vol. 1835. A
E. S. and K. D. Schroff, Arzneimittellehre und Receptirkunde. Wien. 1833.
A. Trousseau et H.Pidoux, Traite deTherapeutique. Paris , pr tom. 1836. 2nd tom.re part. 1837.
C. G. Mitscherlich, Lehrbuch der Arzneimittellehre. Ire Bd. lte Abl. Berlin, 1837.