136 • Ex. Doc. No. 41. 



halting at Santa Fe, in latitude 35=^ 41', on a tributary of the Del 

 Norte, about 15 miles distant from the Del Norte, and about 1,500 

 feet above that river and 6,850 above the sea. ■ 



From. August I8th up to the 14th October, all the collections 

 were made in New Mexico, in the valley of the Del Norte, or on 

 the table lands adjacent, and between Santa Fe and the 33d par- 

 allel of latitude; (230 miles below Santa Fe.) 



From the 14th October to the 19th, we were crossing the great 

 dividing ridge between the waters of the Del Norte and the waters 

 of the Gila, nearly on the 33d parallel of north latitude, and 

 "between the I07th and 109th meridians of longitude, measured from 

 Greenwich. The greatest height of this dividing ridge along our 

 trail was about 6,000 feet above the sea. 



From the 19th of October to the 22d November, we" were follow- 

 ing the course of the Gila river, occasionally forced into the moun- 

 tains to avoid the canons. This route is never far from the^33d 

 parallel of latitude, and is embraced between the 109° and 114° 30 

 meridians of longitude, falling, during that distance, very uniformlj 

 from about 5,000 feet to near the level of the sea. 



From the 22d November to the 24th, we were on the Colorado ot 

 the -west, traversing a low sandy bottom. 



From the 24th November to the 28th we werQ crossing the great 

 desert of drifting sand in a course little north of west. 



fc) 



(R 



or spring, the waters of wliich, when first exposed, are warm, ana 

 emit the smell of sulphuretted hydrogen. . 



From the 28th November we commenced to ascend the CordU- 

 leras of California, (the continuation of which forms the peninsula 

 of Lower California,) and reached the highest point of the route 

 December 5th, 3,000 feet above the sea, and as many below tne 

 overhanging peaks. From that point we descended to San Dieg j 

 a seaport on the level of the" sea, in latitude 32° 45' and longitude 

 117° 11' west of Greenwich. This point we reached December U- 



W^ 



W. H. KMORY 



Professor Torrey, Princeton. 



RANUNCULACE.E. 



Ranunculus aquaticus, Linn. Plains of the Arkansas. . , 



Clematis Virginiana, Linn. Raton mountain. An undetermin^ 

 species of this genus was found in fruit November 10th ^"^ , 

 Gila. The plumose tails of the carpels are nearly three incUe 



long. 



BERBERIDACE^. 



Berberis plnnata, Lagasca. Highlands bordering tlie Gila. ^ 

 appears to be a common species in the southern part of Upper ^^ 

 fornia; and in Northern Mexico. 



