1898.] NATURAL SCIENCES OF PHILADELPHIA. 373 



chinarapas. The botanist must needs hire a canoe to procure speci- 

 mens. The town is a veritable Venice. 



August 17, (Monday). — The town and hills of Guadalupe, the 

 Cerro de Tepeyac and Cerro de Gachupines visited, and a number 

 of noteworthy plants collected. Guadalupe, some three miles north 

 of the capital, is reached by tram-cars from the Plaza Mayor, and 

 is interesting on account of the Sacred Chapel of Nuestra Seiiora de 

 Guadalupe. 



August ISth, (Tuesday). — An interesting locality visited this day 

 was that of LaCima near the summit of Ajusco at about 10,000 

 feet elevation. The hill above the Indian town afforded more plants 

 than could be conveniently carried. The pedregal in the neighbor- 

 hood also yielded a rich harvest. 



August 20th, (Thursday). — This day was spent in the neighbor- 

 hood of Tlalpam, where the fields and ditches yielded a rich supply 

 of plants. The edge of the Tlalpam pedregal was visited, and the 

 interesting plants of the northern portion of the lava-bed collected 

 and noted. 



August 22d, (Saturday). — Another trip was made to the Tlalpam 

 pedregal and to the hills beyond. In the pedregal, Senecio praecox 

 DC, Cereus serpentimis and Wigandia were noted, and specimens 

 collected for future study at home. 



August 25th, (Tuesday). — The pedregal of Tlalpam extending to 

 Tizapan, the lava bed was visited in the neighborhood of that town. 

 Here the plants were found in the same abundance as lower down 

 the mountain side, so that the pedregal in all its parts may be said 

 to be a veritable flower garden. 



August 26th, (Wednesday). — The writer left the City of Mexico 

 for the Mexican tropics, via the Mexican Railroad to Orizaba and 

 Cordoba ; the next few days were spent amid the tropical luxuriance 

 of the Mexican flora. Epiphytic orchids and other interesting 

 plants were collected about Orizaba and in the neighborhood of the 

 waterfall called Rincon Grande. 



August 29th, (Saturday). — Returned to the City of Mexico, where 

 the plants collected in the tierra caliente were preserved, some in 

 formalin, others by drying. 



August 31st, (Monday). — Visited the Tlalpam pedregal on the 

 Mexican, Cuernavaca and Pacific Railroad at a much higher ele- 

 vation than formerly visited, at about 9,000 feet. Here Dahlias 

 were found in the greatest profusion and abundance. Returning 



