102 



DEFINITIOM OF TERMS. 



cult to remove the whole without injur- 

 ing the surrounding cutis, which is often 

 of bad consequence in old people, fatal in- 

 flammation and mortification having been 

 caused by it. The radical cure consists, 

 in removing the whole corn, or thickened 

 cutis. The cuticle may be raised here, 

 as it is in every other part, by blisters : 

 but its thickness prevents this effect tak- 

 ing place so easily. Warm stimulating 

 plasters will in general be sufficient. The 

 causes of corns when carried too far, often 

 produce inflammation and suppuration, 

 and whichever way the suppuration is 

 produced, it is liable, if not attended to, to 

 become very tedious ; for the skin hav- 

 ing a greater disposition to heal than the 

 parts underneath, produces a fistula : so 

 that such sores should be dressed to the 

 bottom, and if they are indolent at the 

 bottom, should be stimulated by appro- 

 priate dressings. 



CHILBLAINS CURED BY BALSAM OP 

 COPAIBA. 



Dr. W. S. W. Ruschenberger, of the 

 U. S. Navy, states, in a communication 

 in the Medical Examiner, (No. 5,) that 

 he treated a number of cases of chilblain 

 occurring among the crews of the U. S. 

 ships Falmouth and Peacock, in the years 

 1833 and 1S37, by smearing the parts 

 affected with balsam of copaiba. All the 

 cases, he says, where ulceration had not 

 taken place, were entirely relieved by 

 one or two applications, and very few re 

 quired more than a third application of 

 the remedy. 



When this communication appeared 

 the Editor of this Journal was perform- 

 ing his tour of duty at the Philadelphia 

 Orphan Asylum, where there were thir- 

 tv-two children affected with chilblains. 

 He was induced by the representation of 

 Dr. R. to try the balsam of copaiba in a 

 few cases, and the result was so satisfac- 

 tory that he had the application made to 

 all of them. In every one the relief was 

 most prompt, and in two or three weeks 

 the whole were cured. 



METHOD OF CLEANING GLASS. 



Reduce to very fine powder a piece of 

 indigo, moisten a rag, apply it to teh 

 powder, and rub the glass over with it, 



then wipe it well with a dry cloth. Very 

 finely sifted ashes applied in the same 

 manner by a rag dipt into brandy or spir- 

 its will answer as well ; but Spanish white 

 ought to be rejected, as it is apt to take 

 oft' the polish of the glass. — Journ. Corn. 



TO PREVENT IRON FROM RUSTING. 



Heat cast iron vessels pretty hot, and 

 rub them well with a woolen cloth dipped 

 in train oil, they may be exposed to the 

 weather, without being injured, a long 

 time. — Farm. Mu";. 



VALUABLE INFORMATION FOR WATCH- 

 MAKERS. 



A combination of Platina, Silver, and 

 Copper (the relative proportions not slat- 

 ed,) is found to be a superior article lor 

 the pivots of wheels to turn in, as oil has 

 no efi'ect upon it. — Fhila. Gaz. 



ROHAN POTATO. 



• This potato is very large, excellent in 

 quality, and productive beyond all other 

 potatoes. The product of one potato the 

 past season, is two and a quarter bushels. 

 That of one peck, sixteen and a half bush- 

 els. And the product of four pounds 

 is eighteen bushels, 1173 pounds. Can 

 any one give information where these po- 

 tatoes can be procured. — Northampton 

 Courier. 



DEFINITION OF TERMS (CONTINUED.) 



Letter E. 

 Earths. — The term earth is applied 

 in common life, to denote a tasteless, in- 

 odorous, dry, uninflammable, sparingly- 

 soluble substance, which is difficultly fu- 

 sible, and of a moderate specific gravity. 

 Several of the earths are found in a state 

 of purity in nature ; but their general 

 mode of occurrence is in intimate union 

 with each other, and with various acids 

 and metallic oxides. Under these circum- 

 stances, they constitute by far the greatest 

 part of the strata, gravel and soil, which 

 go to make up the mountains, valleys 

 and plains of our globe. Their number is 

 ten, and their names are silex, alumina^ 

 m,agnesia, lime, barites,strontites, zir- 

 con, glucine, yttria and thorina. The 

 four first have long been known to man- 

 kind ; the remainder have been discover- 



