S. L. P<<)<fi<I<l—(J<ui<i><>.s>tioh of Ann r'x-a-n Monazite. 

 al from other localities. The following table exhibits t 



% Pogg. Ann, Erg.-Bd., v, 413, 1871. 

 The same relation is more clearly brought out 



In addition it may be stated that Trechmamr has found on 

 monazite (tu merit e) from Tavetsch, a /n 7=43° 16', c^e = 84 47'; 

 and for the same mineral from the Binnenthal, a^w=40° 6', 

 c/ve=85° 19', v/sv=72° 7£'. On crystals from the Ilmen 

 Mountains, von Jeremejeff obtained a^c=76° 17'. 



My attention was first directed to the composition of mona- 

 zite l»v Professor Brush, who placed in mv hands a specimen of 

 an unknown mineral collected by Mr. E. F. Sheldon at Pel- 

 ton's Quarry, Portland, Conn. It was then suggested that it 



so-called altered microlite (in fact, monazite, see beyond), from 

 Amelia County, Virginia, specimens of which had just arrived 

 at New Haven. A si 4 the Port- 



. 2ST (Ztitsdi. Kryst.. 



