Vlll 



" I am still working away at Verdeil's ; lie is at present making 

 observations on the fats of the blood and faeces while I am working 

 at urine. I have made a most important discovery, namely : that 

 the colouring matter of the urine is hse matin, which appears to 

 have all the properties of that in the blood, and I have clearly shown 

 the presence of iron combined w T ith the colouring matter, and 

 seemingly in the same manner as it is combined in the blood. T 

 have found this substauce in the urine of many pigs, horses, cows, 

 &c, and can get it by three or four different processes." 



Harley was in Paris at the time of the Coup d'Etat provoked by 

 Louis Napoleon. The writer of this notice sallied forth on the 

 morning of that memorable day with George Harley and E. Risler, a 

 gentleman also at work in the Rue Garanciere, and who subsequently 

 rose to a high position in France ; he is now " Directeur de l'lnstitut 

 Agronomique " in Paris. Paris was in a state of feverish excitement, 

 the Place du Carrousel was so crowded that it was impossible to 

 walk across it, when suddenly a lane opened in the crowd, and 

 Louis Napoleon appeared on horseback, walking leisurely at the 

 head of his staff. Thus it was that he rode round Paris, and the 

 courage be exhibited won the day for him. Along the boulevards the 

 cavalry was drawn up apparently from the Madeleine to the Bastille, 

 and there was firing on the people. After the firing had ceased the 

 party, which had been joined by Yerdeil, thought of visiting the 

 Boulevards. At the corner of the Rue Vivienne they came across 

 a dead body on the pavement ; a little further on there were two 

 more ; then a poor man who had been killed still grasping with his 

 contracted fingers a coloured handkerchief, containing apparently 

 clothes for the wash. The cavalry looked ominously threatening, 

 drawn up on the opposite side of the street ; one of them riding up 

 enquired the object of the party on the boulevard, and then enjoined 

 it to leave as soon as possible, as orders had been given to fire on 

 anybody walking about the street. Of course his injunction was 

 strictly complied with. 



Harley's next paper after the publication of that on the presence 

 of iron in the blood, was entitled " Recherches sur la physiologie du 

 Diabete — nouvelle methode pour produire artificiellement le diabete 

 sur les animaux," ' Compt. Rend. Soc. Biol.,' 1853. In this year he 

 was elected President of the Parisian Medical Society. 



While in Paris Harley worked also under Majendie and Claude 

 Bernard. Majendie was then giving up work, after having earned a 

 deservedly great reputation, and was succeeded at the College de 

 Prance by Claude Bernard, who delivered an admirable course of 

 lectures on physiology which was attended by many English visitors 

 and by Harley amongst others. 



After two years' residence in Paris, Harley went to Germany, and 



