WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
129 
Mexico— Continued. 
Catalogoa geografico de lasespecies mineral- 
ogicos, Aguilera, 66. 
Changes of level in Mexico, Hull, 2804. 
Changes of level in Mexico, Spencer, 5148. 
Copalquin and Lemon mineral zone, Buelna, 
662. 
Copper mining at Placeritas de Nacosari, 
Sonora, Layton, 3423. 
Cretaceous of Mexico, Hill, 2542. 
Cretaceous of western Texas and Mexico, 
Dumble, 1568. 
Datolite from Guanajuato, Farrington, 1800. 
Diaphorite from Mexico, Spencer, 5160. 
Description de las rocas, Ordonez, 4144. 
El Real del Monte, Ordonez and Rangel,4152. 
Eruptive rocks of Mexico. Farrington, 1709. 
Evolution continentale <lu Mexique, Agui 
lera, 67. 
Expedition toSeriland, McGee, 3868. 
ExplotaGion de las minas, Rangel, 4530. 
Fauna fossil de la Sierra de Catorce, Aguilera , 
57. 
Fisiografia de la sierra de Pachuca, Aguilera 
and Ordonez, 62. 
Free gold in granite, Merrill. 3956. 
Genesis of ore deposits, Posepny, 1421. 
Geologia de la sierra de Pachuca, Aguilera 
and Ordonez, 63. 
Geologia de los Alrededores de < Orizaba, i5ose, 
508. 
Geological canal- between the Atlantic and 
Pacific oceans, Spencer, 51 i:;. 
Geological sketch of Lower California, Em 
nions and Merrill, 1703. 
Geologieund paleontologie der Mexico, Felix 
and Lenke, L805. 
Geology of Mexico, Aguilera, 56. 
Geology of Mexico, Bain, 189. 
Geology of part of Sonora, Mexico, Hill, 2630. 
Geology of Sonora, Mexico, Dumble, 1573. 
Gold fields of Altar, Waring, 5862. 
Gold in Zacatecas, Mexico, liaise. 2278, 2279. 
Gold resources of Mexico, Comely. L058. 
Gold zone of Copalquin, Durango, Fowler, 
1880. 
Hematite and martite iron ores, Hill, 2541. 
igneous rocks from Coahuila and Nueva Leon, 
Cross, 1185. 
Iron-producing country, Mexico as an, Hill, 
2538. 
Itinerarios geologicos, Aguilera. 60. 
Itinerarios geologicos, Buelna, 661. 
Itinerarios geologicos, Ordonez, 4142. 
La roca del Calendario Azreca, Ordonez, 4139. 
Lasfumarolasdel Popocatepetl, Aguilera and 
Ordonez, 65. 
Las rocas del mineral de San Jose de Gracia, 
Ordonez, 4145. 
Las Rocas eruptives del Suroeste, Ordonez, 
4141. 
Les nions argentiferes de Pachuca, Ordonez, 
4149. 
Les gisements d'or du Mexique, Ordonez, 4150. 
Lias in Mexico, Bose, 507. 
Les volcans du Valle de Santiago, Ordonez, 
4152a. 
Bull. 189—02 9 
Mexico— Continued. 
Los vetas, Aguilera and Ordonez, 64. 
Manganese, occurrence of, Halse, 2277. 
Mines of Velardena, Mexico, Fogh, 1844. 
Mining and smelting in Durango, Mexico, 
Furman, 1932. 
Mining in Oaxaca, Clark, 890. 
Native sodium carbonate, Blake, 477. 
Natural coke of Santa Clara coal field, Sonora, 
Mexico, Dumble, 1571. 
Nephaline syenite -in Tamaulipas, Mexico, 
Finlay, 1819. 
New copper deposit, Lukis, 3593. 
Observaciones relativas a los volcanes de 
Mexico, < (rdonez, UK). 
Observations on Popocatepetl, Farrington, 
1796. 
Occurrence of selenium, Pearce, 4280. 
onyx marbles, Merrill, G. P., 3944. 
QuicksilverminesatHuitzuco, Mexico, Halse, 
2281. 
Quicksilver ores at Guadalcazar, Mexico, 
Rundall, 4693. 
Review of " Boletin de la Comision geologica 
ile Mexico," Stanton, 5196. 
Rocas eruptivas, Ordonez, 4143. 
Sabinas coal field, Tuttle, 5192. 
Sheetflood erosion, McGee, 3870. 
Sierra Mojada, mines of, Fechet, 1804. 
silver district of Tehuilotepec, Mexico, Halse, 
2281. 
Sinopsis de geologia Mexicana, Aguilera, 61. 
Sisteina de fracturas, Sanchez, 4789. 
Tin-ore al Sain Alto. Zacatecas, Halse, 2282. 
Tin deposits of Durango, Mexico, Ingalls, 
2862. 
Tin deposits of Durango, Mexico, Kempton, 
3023. 
Topography of Mexico, Wilson, 6268. 
Triassic coal and coke of Sonora, Mexico, 
Dumble, r>7'_\ 
Ueber das Vorkommen von Nummuliten- 
schichten in Mexico, Felix and Hans, 1808. 
Ueber die mexicanische Vulcanspalte, Felix 
and Lenk, 1807. 
Ueber die raumliche Anordnung der mexi- 
kanischcn Vulkane, Sapper, 4791. 
Verhaltnisse der Mexico, Felix and Lenke, 
1806. 
Vulkane, mexikanischen, Sapper, 4792. 
Michigan. 
A bit of Iron Range history, Winchell, H. V., 
6282. 
Abandoned shores of Green Bay, Taylor,5336. 
Abandoned shores of Lake Superior, Taylor, 
5337. 
Archean and Algonkian in the Northwest, 
Van Hise, 5678. 
A remarkable marl lake, Davis, 1344. 
Basic massive rocks, Bayley, 308. 
Bayport quarries, Benedict, 416. 
Central Michigan and the post-Glacial sub- 
mergence, Mudge, 4049. 
Changes of level in the region of the Great 
Lakes, Taylor, 5340. 
Chicago to Niagara Falls, Gilbert, 1990. 
Chloritoid from Michigan, Hobbs, 2645. 
