EXTRACTS FOREIGN AND DOMESTIC. 133 



On the Origin of the Constituent and Adventitious Minerals of Trap and the 

 Allied Rocks : By James D Dana. 

 A Review of Chemical Theory : By Mr. Whelpley. 



The Geolosy of the Country around the Mount Savage Iron Works, Maryland . 

 j By Thomas H. Weld, of Knulanil. 



I Tlie Geoloy;yof Mis^^issippi : By Mr. Wailes, of Miss. 

 I The Gypsum of New-York : By Prof. Dewey. 



I Question of the Existence of the so-called Taconic System of the United 

 States : By Prof. H. D. Rogers. 

 The Geology of the Upper Missouri : By Prof. H. Rogers. 

 Synopsis of the Fishes of North America : By Dr. D. H. Storer. 

 On a Chain of Erratic Serpentine Rocks, in Berkshire Massachusetts : By 

 Stephen Reed. 



ComiTiiinications or papers were also promised by Mr. Peter A. 

 Browne of Philadelphia, Dr. Dean, ar d Lieut. Maury, in a day 

 or two. 



Prof. Silliman then presented a paper from Lieut. Hardy, R.N., 

 on the Polecat Tree of Missouri, and the Holly Tree and Mistle- 

 toe, of England and America. He then went on to state that the 

 President of the last year, by custom, delivered the address of the 

 present year ; but he had recently seen Dr. Lpcke, at Cincinnati, 

 iivho was unable to attend. 



! The articles of the constitution were then read, by which it ap- 

 Deared that the name of this society is the " Association of Ameri- 

 can Geolotjists and Naturalists." 



Prof. Silliman then read a paper from Lieut. R. W. H. Hardy, 



I. N., of Kilkenny House, Sinn Hill, near Bath, England, on two 



subjects : L The Mapolite root bark ; or polecat tree root bark 



)f Missouri. 2. The mistletoe and holly barks, and their raedici- 



lal properties. Lieut. Hardy said that the bark of the root of the 



)olec:,t tree, or mapolite, possessed wonderful and strong anti- 



Icorbutic properties ; and would cure gums that were sore, swollen 



'ml tender, even when the teeth were loose. He cured a inan with 



t at Sonora, in Mexico, in three days, whose gums were so bad that 



.is pillow used to be covered with coagulated blood of a morning. 



n general cases, it cured scorbutic gums, &c., in one day's use of 



e baik. He never knew it to fail. A piece of the root bark is 



be masticated till all the pungent properties have left it ; then 



cw another piece, and so on till a cure is effected. If the disease 



stunts, repeat the remedy. He speaks of its anti-sccibutic pro- 



erties in the same manner as we do of the properties of cinchona 



r sulphate of quinine as a cure for ague. Its therapeutical pro- 



crties were first shown to him by an American, Mr. Gibson, a 



unter or trapper, who married a woman at Opossum, in Sonora, 



Fexico, whose wife Hardy attended. It is found in great abun- 



mce on the banks of the Missouri, where its smell disgusts all 



ho come near it. Mr. Hardy took some of it to England and 



ps used it there with great success in every case. The second 



ise was the produce of the mistletoe berries and the inner bark 



