18 ©. A. White—Age of Coal in the Rio Grande region. 
13. Flora. 
The following is the list of plants, as identified by Professor 
Asa Gray, found in bloom about Muir inlet during the month 
of August. Where the altitude is not given they were found 
near the tide. 
Arabis ambigua, prong. 22-9 2222 See ee Aug. 26 1600 A. T. 
Atenania peploides, Use .8) 2223258 e ee 28 
Astragalus; alpimuss 5) oes. Say. See i 
Hedysarum boreale, Nutt.....-..----- 28 
Sanguisorba Canadensis --..------- nae 6 . 
Lutkea sibbaldioides, Brong. ---.-- .--- 27 
Daxunna wa ly lla emo: leaves eee eee ae 26 V6007ARe 
sbellllarisesG age cake cee = yeauatar sy scces 27 3000 Awe 
armassianimioriavasjsmallics se saree 27 3000 A. Ts 
POA GL Salley ee cee ered eae ee eeestes 6 
Hpilobrunilatitoliums se see eee ee 6 1600 A. T. 
origanifolinm, Lam. (?) - 28 
Solidago multiradiata, Ae SUN NEL an 27 
Krigeron salsuginosus, Gray, arctic form 27 ©=63000 ANT: 
Antennaria marearitacea, a arctic form_ -._ 27 
Achillea millefolium, L., arctic var. __-- 21 
ATnICa-obtusitolias meskes sero ee 97. 12007 AE 
Campanula rotundifolia, L., var. Alaskana 28 
Gentianamplatypetalai(?) essere 27 
ee een Ziesiie, (8) ou Meee See eee | 27 
Mertensia maritima) 4 esse) sae eases i 
Castilleja parviflora, Brong. _.---.-.--- 28 
Salix westitass banish) eee as he ee 6 
Habenaria hyperborea, R. Br. -_ _----- 27. 2650 Ave 
uzula»parvitloray Meyer tae ee sony 
Roayalip inary aleaviivalp tices eee ae 26 1500 A. T. 
Roa: alpina Aimee cet ae cs araee et ae 26 1600 A. T. 
PoatlaxaHeenkese ge yoke ha Mice 26 1500 A. T. 
‘Phleumjall pinay mis see sa ees ae 26 1600 A. T. 
El yanusim oll ss eae hay eye sane Ap eae 6 
Ffordeumeasps (2) ee ae eee ae oa 6 
Art. I].—-On the Age of the Coal found in the region trav- 
ersed by the Rio Grande; by C. A. WHITE. 
DURING the past few years many discoveries of coal have 
been made within the region which is traversed by the lower 
portion of the Rio Grande, besides those which were made by 
the members of the United States and Mexican Boundary Com- 
mission and other early government expeditions. In Texas, 
coal has been found in Webb, Maverick, Presidio and Hl Paso 
