1^2 THE PLANT WORLD. 



legible. In all instances the labels should be made of such material 

 as will resist accidental or ordinarily malicious breakage. The labels 

 in use in the New York Botanical Gardens seem to fill these require- 

 ments satisfactorily. They are cast-iron with the letters raised and 

 painted a different color from the ground-work. 



. . . NOTES A/ND NEV5. 



The Field Columbian Museum has just issued as number 4 of the 

 botanical series a third contribution to the Costal and Plain Flora of 

 Yucatan by the Curator of Botany, Dr. C. F. Millspaugh. 



Carex vulgaris Fries, a characteristic sedge of the Northern At- 

 lantic seaboard, and only rarely found as far south as Pennsylvania, 

 was collected in 1897 in tidal mud along the Delaware river a few miles 

 below Philadelphia. This is believed to be the most southern station 

 from which this species has been reported. — C. F. Saunders^ Phila- 

 delphia, Pa. 



Mr. E. O. Wooton describes a handsome new Wild Rose {Rosa 

 stellata), from the high mountains of New Mexico, in the March 

 number of the Bulletin of the Torrey Botanical Club. It has solitary, 

 deep rose-purple flowers two inches in diameter, and small 3-5 folio- 

 late leaves, the leaflets triangular and hardly one-fourth of an inch 

 in length. It seems worthy of cultivation. 



In the summer of 1S89 I spent several weeks in New Mexico, in 

 the vicinity of Santa Fe. At Copper City, which is in the Jemez 

 mountains, I noticed the following phenomenon : I visited a copper 

 mine near that place where a low grade ore is reduced by what is 

 called the cementation process, which consists in dissolving the finely 

 powdered ore by a strong solution of hydrochloric acid, and then 

 precipitating the contents in the form of metallic copper by means of 

 iron scraps. The solution is conducted through several large vats 

 until the copper is so far abstracted from it that it is no longer of com- 

 mercial importance, when it is permitted to flow down the hill-side. 

 Much of the vegetation has of course been killed, but a number of 

 large pines {Pinus ponderosa scorp7iloru)n), whose roots and bases had 

 been bathed by this weak copper solution had not yet succumbed. Any 

 cut in the trunks or even higher branches, which permitted the pitch 

 to exude showed it to be of a beautiful emerald hue, bringing out the 

 fact that the copper solution has been taken up to such an extent 

 as to thoroughly impregnate the entire tree. — F. H. K. 



