5 1 Excurjtons to MonUPerdu. 



Thefe fuggeft'ions may, I hope, afford a thread to others, more converfant in the theory of 

 Mahuzzim, or faints proteftors, than I am, to favour you with information of more confe- 

 quence on the fubje£ls of the manufactories in queftion. The editors of the EngHfli Ency- 

 clopedia fay, that, on the fubjeft of dreffing flax, they refer their readers to fome obfervations 

 in the Gentleman's Magazine, for June, 1787 : I have not that book at hand, but I hope 

 your readers may find in it fome ground-vi'ork for future machinery. 



I am, fir. 



Yours, &c. 



N.L. 

 In the liquor for boiling of wool hats, after bowing and bafoning, one part of human urine 

 IS made ufe of, and two parts clean foft water : Could not fomething be fubftituted in place of 

 the urine, which might be equally ufefttl w hardening the hoad^ and exclude fo dirty an ingre- 

 dient*? 



XII. 



ExtraB of a Letter from Citizen Ramond, AJfodate of the National Inflitiite of France , and Pro- 

 fepr of Natural Hiflory at Tarbes, to Citiztn Haiiy, Member of the InfituU at Paris, refpeB- 

 ing two excuifions to Mount Perdu, the mofl elevated fummit of the Pyrenean Mountains*. 



I 



Bareges, 5 eomplera. day, in the year V. 



FLATTER myfelf, Citizen, that you will not hear, without intereft, fuch events as have 

 proved mofl; remarkable in the refults of my travels of the prefent year. I haften to com- 

 municate them, with the hope that the portion of your time which I fliall engage will be well 

 repaid by the geological fail which is the obje£t of this letter. 



Mount Perdu is the mofl: elevated mountain in the chain of the Pyreneans. In my for- 

 mer travels, I proceeded along the bafes. Reboul, who has fucceeded in determining its 

 height by obfer\'ations made from various elevated points, had likewife approached it in a dif- 

 ferent direftion. It is certain that the whole of the furrounding group is calcareous, and 

 the afpeft, which can fcarcely deceive thofe who are habituated to behold and contemplate 

 mountains, had determined my belief that the entire pic was of the fame nature. 



Abundance of calcareous matter forms one of the diftindt chara£lers of the Pyrenean 

 mountains ; but to behold this genus in poffeflion of the very creft of the chain, the place 

 which the granite occupies in every other known chain of mountains, was a phenomenon tod 

 fingular not to infpire me with the ftrongeft; defire to afcertain its exiftencc. 



The enterprize was not without its difficulties ; and among them, that which was the leafl 



* The preparations for my change of refidenee, as mentioned en the wrapper, have induced me to defer my 

 own obfervations and report, concerning hatting, till next month. — N. 



f Read to the French National Inftitute at the fitting of the 2 1 ft Vendemiaire, in the 6th year of the Repub- 

 lic (12th Oftober, i797)» and inferted in the Jour»al de Mines, No. 37, of the fame ye^r. 



forefce% 



