386 Coiiuexion btiwctii Magnetism and Electricity. 



SO. Iodine. 



This substance lias been found to be an excellent reme- 

 dy in the cure of Goitre. An able memoir upon it by Dr, 

 Coindet in the Bib. Univ. of Geneva contains the following, 

 lode is a stimulant, it gives tone to the stomach, and excites 

 appetite ; it acts neither as a cathartic, nor diuretic, nor 

 does it excite sweating; but its action is directed to the re- 

 productive system, and especially to the uterus. If given 

 m a certain quantity and continued for some time, it is one 

 of the most active emmenagogues that I knovv% It is per- 

 haps by the sympathetic action that, in the greater number 

 of cases it cures Goitre. This substance deserves, under 

 this new point of view, the attention of physicians, and I 

 doubt not, that it will become in skilful hands one of the 

 most powerful remedies with which modern chemistry has 

 enriched the materia medica. It has been discovered in 

 sponge and in peat. 



51. Mercurial Atmosphere. 



Mr. Faraday chemical operator at the Royal Institution,. 

 London, has found that when a thin stratum of mercury 

 rests in the bottom of a clean vial, a piece of gold leaf care- 

 fully suspended from the stopper, becomes in the course of 

 a few weeks, whitened by a quantity of mercury through ev- 

 ery part of the bottle, the mercury remains just as before. 



Brandeh Journal. 



52. Connexion between Magnetism and Electricity. 



The discoveries of Professor Oersted of Copenhageij 

 which so clearly establish the connexion between Mag- 

 netism and Voltaic electricity have been considered so im- 

 portantas to induce the Royal Society of London to vote him 

 the Copley medal. We insert from the Journal of the Roy- 

 al Institution, a summary of these highly interesting results. 



" No discovery has, for a long time, so strongly excited 

 the attention of the philosophic world, as that of the mag- 

 netic phenomena belonging to the voltaic apparatus; we 

 shall, therefore, endeavour to give our readers a short state- 

 ment of what has been done in this department of scientific 

 inquiry. 



