Miscellaneous Intelligence. 75 
Pefiafiel; the geographical distribution of birds, by D. F. Sumi- 
chrast; on Mexican Mammifers, by D. M. M. Villada; on Cac- 
J Tel ; y D. V. Cervantes; 
habits of Quiscalus macrourus, by D. M. Barcena, and among the 
others the following: 
On a new Mexican mineral, by Don Pedro L Monroy (i, p. 
76). The mineral contains chiefly bismuth and tellurium, with per- 
haps a little sulphur, arsenic and'silver. G.=8-23; H.=3-75-4, on 
the scale of Breithaupt; luster metallic; color between steel gray 
and the white of antimony, but tarnishes to bronze and iron black ; 
owder grayish-black; somewhat ductile. e specimen was 
labeled from the mine of Coneto, near Durango. 
On some combustible minerals of Mexico, by Don P. L, Mon- 
roy (1, p. 87). The paper contains analyses of coals and lignite, 
from La Villa de Panuco, Vera Cruz; between Xilitla and Jac- 
ala; Xilitla; Pez de J alapa; Yahualica, State of Hidalgo; Chil- 
pangingo, State of Guerrero; Paso del Norte, Chihuahua; Zacu- 
altipan, Hidalgo; Texmelucan, Puebla. 
pote of Popocatepet] in 1865, by A. Dolfus, E. de Montser- 
tex, by D. J. M. Velasco; new grasses, by D 
heights measured are: the summit of Popocatepetl, 5,425 meters ; 
bottom of the crater. 5 119 meters; diameter of the crater at top, 
825°68 meters; height of Ixtaccihuatl, 5,207 meters. Eruptions 
have taken place from Popocatepetl in the years 1519, 1530, 1548, 
1571, 1592, 1642, 1664, 1802. 
€ technical art is rarely crowded into the same space as is to 
ound in the one hundred closely printed pages 0 
v ie, € copper process at Agordo; the mercury works at 
alalta; the lead works at Mechernich; the gold and silver 
works at Lend ; occupy 53 pages, rich in information and details 
e lead and silver works of the Hartz Mountains, Clausthal, 
Lautenthal, and the copper process at Altenau, complete this use- 
