Dana and Wells — New mineral, Beryllonite. 23 



infinitesimals of time, and whose whole duration may be far 

 less than the millionth of a second, he has hardly even yet be- 

 gun to think ; and these are but little portions of the ungarn- 

 ered field of research, open to the student of that radiant 

 energy which sustains, with our own being, that of all ani- 

 mated nature, of which humanity is but a part. 



If there be any students of nature here, who, feeling drawn 

 to labor in this great field of hers, still doubt whether there is 

 yet room, surely it may be said to them, " Yes, just as much 

 room as ever, as much room as the whole earth offered to the 

 first man ;" for everything that has been done in the past is, I 

 believe, as nothing to what remains before us, and that field is 

 simply unbounded. The days of hardest trial and incessant 

 bewildering error in which your elders have wrought, seem 

 over. You " in happier ages born," you of the younger and 

 the coming race, who have a mind to enter in and possess it, 

 may, as the last word here, be bidden to indulge in an equally 

 unbounded hope. 



Akt. II. — Description of the new mineral, Beryllonite y by 

 Edwaed S. Dana and Hoeace L. Wells. With Plate I. 



In the October number of this Journal a preliminary account 

 was given by one of us* of a new phosphate of sodium and 

 beryllium, for which the name Beryllonite was proposed. We 

 purpose now to give a more complete account of this species, 

 the unusual interest of which has been developed by fuller 

 study. 



Locality and occurrence. — The first specimens of beryllonite 

 were discovered near Stoneham, Maine, in 1886, by Mr. Sumner 

 Andrews of Lawrence, Massachusetts. The Stoneham region 

 is already well known, f having afforded fine specimens of 

 topaz, phenacite, herderite and many other species of greater 

 or less interest. The exact locality of the beryllonite is situ- 

 ated in the west part of the town of Stoneham at the base 

 of a small but steep mountain, known as the McKean moun- 

 tain. At this spot, work was carried on;}; sometime since in the 



* E. S. Dana, this Journal, xxxvi, 290, October, 1888 ; the chemical work of 

 the present paper has been done by H. L. Wells. 



fCf. George P. Kunz, this Journal, xxv, 161, 1883, xxvii, 212, 1884, xxxvi, 

 222, 1888. W. E. Hidden, xxvii, 73, 125, 1884. Mr. Kunz has since announced 

 that the topaz and phenacite locality is not in Stoneham but on Bald Face Moun- 

 tain, North Chatham, New Hampshire, just across the State line ; this is 6 or 7 

 miles west of the beryllonite locality. Herderite and topaz are found on Harndon 

 Hill, Stoneham, about 4 miles southwest of the beryllonite locality. 



% By Mr. E. D. Andrews. 



