detention at ures. 
437 
I felt much inconvenience from the cold. The lowest 
point at which I noticed the thermometer was 40° 
Fahrenheit; which for a sick man, with no fire, and 
the door open to admit light, cannot be said to be com- 
fortable. Nevertheless, thanks to an all-protecting 
Providence, and the excellent attendance I enjoyed, 
the privations I was subject to did not prevent my re- 
covery ; and by the middle of December, I was able, 
with the assistance of my friends, to walk out. 
Dr. Webb and his party reached Guaymas in safety ; 
but there he was taken ill with a fever, which detained 
him two weeks beyond the time allotted for his journey. 
The others also had slight attacks. On their return, I 
was still very weak, though convalescent. Dr. Camp- 
bell, who had had much experience in the fevers of the 
country, said it would not be possible for me in my 
enfeebled state to make the long journey to the Gila, 
where our surveying parties were, and thence to Cali- 
fornia. Both he and Doctor Webb advised that I 
should remain in Ures until my strength was sufficient- 
ly restored to enable me to proceed to Guaymas, and 
should then embark in some sailing vessel for Mazat- 
lan, from which place I could take' passage for San 
Diego, in California, where the engineering parties 
would meet me. As soon as I determined on this step, 
I considered it best that the party which had accompa- 
nied me should retrace their steps to Santa Cruz, and 
from that place rejoin the parties on the Gila. 
On the fifteenth of December, the party took leave 
of me and set off, accompanied by eight Mexicans, 
whom Governor Cubillas had kindly provided to escort 
them as far as Santa Cruz ; there they hoped to find 
