By Alfred, K.W.
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185). Meanwhile Amiel Whipple and Charles C. Parry established an astronomical camp at the confluence of the Gila and Colorado Rivers, an orientation point of the boundary. They too had problems, namely that the Gila River constantly shifted in its course and was impossible to pin down. Then the Whigs came into power. In 1849 President Taylor relieved Weller of the post and offered it to John C. Fremont, who mercifully declined. Had Fremont accepted, Emory, the most competent member of the Commission but also Fremont's political enemy, would have had to resign.
Little or no work has been done, and yet the appropriation is all gone” (Goetzmann 1958, p. 180). Taking charge in 1853, Emory proved to be as efficient as his predecessor was disorganized. He swiftly and competently completed the mission five years after the Treaty of Guadalupe Hidalgo. Only one interruption in this phase of the Survey occurred, when the Mexican Commissioner was jailed for a month by his government. The Botanists As the surveying progressed in its erratic course, the accompanying botanists zealously collected plant specimens.
For the next two months, Gambel remained in New Mexico, collecting botanical and zoological specimens in the Sangre de Cristo range and the nearby Rio Grande valley. Since traveling over the deserts and mountains of New Mexico by mule was arduous, amassing a useful collection of plants while on such trips was particularly difficult. As samples were collected in the field, care had to be taken to save all parts of the plant (for example, flower, fruit, root) to retain useful specimens. These specimens were transferred back to camp in metal containers (vascula) or leather portfolios.