from May 1, 1830, to April 30, 1840. 



" most interesting plants which I secured, either in roots or seeds, 

 " are two sp, of Cyclobothra, of one of which I have only seen the 

 " flower buds, but judging from its habit it promises to be very fine, 

 " it is also remarkable for bearing bulbs in the axils of the leaves; a 

 " species of Amaryllis, Milla biflora which I found in abundance 

 " and of which I secured about 1400 roots, seeds of an Arbutus 

 " with pink flowers, a most beautiful annual Cuphea, 2 species 

 " of Tradescantia, and a few other kinds less interesting." 



No. ll.—Bolahos, October 18th, 1837.—" I left Aguas Calientes 

 " on the 22nd of last month, and arrived here on the 4th instant, 

 " travelling over a mountain path of which I never saw the 

 " like before, and which became daily worse by the continued 

 " heavy rains. A few days after my arrival here, I became ill 

 " of fever, probably in consequence of a sudden change from a 

 " cold to a hot climate, and after my recovery the servant was taken 

 " ill, but is fast recovering now by the aid of the little medicine chest. 

 " The principal object of my visit to this place was to procure seeds 

 " of pines and Orchidaceas, which latter, from the elevation of Bo- 

 " lanos above the sea, I anticipated to find in great abundance, there 

 " being only a difference of about 250 feet in the elevation between 

 " Mr. Lavater's hacienda and this town ; but my expectations are 

 " frustrated, the air being very dry and consequently unfavourable to 

 " that class of plants ; however on the road from Aguas Calientes I 

 " was fortunate enough to find two terrestrial species, and on the 

 " mountains west of Bolanos, which are 5000 feet higher than the 

 " town, or about 8200 feet above the sea, I found two species of epi- 

 " phytes, all of which I secured, besides a very pretty Cactus resem- 

 " bling the Cereus senilis with its white spines, which at the ends 

 " are furnished with little hooks. During the three nights which I 

 " passed in those mountains, there was on one occasion a very severe 

 " frost, which will give you some idea of the hardiness of the plants. 

 " The same ridge of mountains is covered with Pines of which there 

 " are 4 species, but the seeds not being ripe yet. I was promised 



