Volume 1

Modern treatment : the management of disease with medicinal and non-medicinal remedies / in contributions by American and foreign authorities ; edited by Hobart Amory Hare ; assisted by H.R.M. Landis.

Date:: 1911

Credit: Modern treatment : the management of disease with medicinal and non-medicinal remedies / in contributions by American and foreign authorities ; edited by Hobart Amory Hare ; assisted by H.R.M. Landis. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

26/1006 (page 22)

$kation that clue to the influence of its anion, and that which is due to its ett-ect as ^ In many cases the activity of one or the other ion is so Lu-eat as to overwhelm the influence of the two other factors, hor instance, h' ihe ease of potassium cyanide the cyanogen ion is so poisonou.s that the influence of the potassium is imperceptible, and it is impos.siblc to introduce a sufficient amount of the salt into the body to exerci.se the salt acd^ Sometimes it is the basic and sometimes it is the acid ion which exercises the preponderant power and in other m-iv be extremely poisonous, m which case we get the typical salt enec Wlfen the two ions are of approximately the same toxicity, the physi - kgSl ttiorot the compoun^i will be the snna of h - I Tn such instances, where these salts are being used for therapeutic pu noses we can well modify the action of the important constituent by chang- unimportant ion; thus, while all the aXitlfthtX*Si^^^^^ the effects of ammonium m stimulation of these functions. rll„eriver some constant relation betlTphyfotglaTIffeeS^^^^^ ber be shown, so that ““r knowledge onheacu™^^^ which make up a salt Tu '7Tthe action has it is impossible to forete 1 yet wherever we have a never been experimentally _ g » whose action is known, we compound made up o^ severa^^^^^^ compound will can generally predict with accu y absolutely certain pre- be. Two facts, however, Prevent u rpj^e^first of these is that, by dictions as to the effect o an u dissociation; thus, by introducing new elements, we na y proportion we destroy its adding iron to potassmin j^nger yields up a toxicity, because a salt IS o non-poisonous. The other when introduced into the alimentary *™c - substance is separated ^\■hen an a(|ueo,is solution of u f,„ ,„e from pure water by an anima mci ■ ,|,e crystalline body to pass ° ,,„lnn,l membrane become :;’7:;:airnlit^^^^^^ - •»*»'—$