380 
APPENDIX. 
of knowledge. For the more successful attainment of this, a corps of 
scientific gentlemen, consisting of the following persons, will accom- 
pany the Expedition, and are placed under your direction. 
Mr. Hale, Philologist, 
Mr. Pickering, ) _ _ J ,. 
,, -r, S> Naturalists. 
Mr. Peale, 5 
Mr. Couthouy, Conchologist, 
Mr. Rich, Botanist. 
Mr. Dana, Mineralogist. 
Mr. Drayton, l _ 
A/r A y Draughtsmen. 
Mr. Agate, 3 
Mr. Brackenridge, Horticulturist. 
" The hydrography and geography of the various seas and coun- 
tries you may visit in the route pointed out to you in the preceding 
instructions, will occupy your special attention ; and all the researches 
connected with them, as well as with astronomy, terrestrial magnet- 
ism, and meteorology, are confined exclusively to the officers of the 
Navy, on whose zeal and talents the Department confidently relies 
for such results as will enable future navigators to pass over the track 
traversed by your vessels, without fear and without danger. 
" No special directions are thought necessary, as to the mode of 
conducting the scientific researches and experiments which you are 
enjoined to prosecute, nor is it intended to limit the members of the 
corps each to his own particular service. 
" All are expected to co-operate harmoniously in those kindred pur- 
suits, whose equal dignity and usefulness should insure equal ardour 
and industry in extending their bounds and verifying their principles. 
" As guides to yourself and to the scientific corps, the Department 
would, however, direct your particular attention to the learned and 
comprehensive Report of a committee of the American Philosophical 
Society of Philadelphia, the Report of a Committee of the East India 
Marine Society, of Salem, Massachusetts ; and to a communica- 
tion from the Naval Lyceum of New York, which accompany, and 
are to be regarded as forming a part of these instructions, as far as 
they may accord with the primary objects of the Expedition, and its 
present organization.- You will, therefore, allow the gentlemen of 
the scientific corps the free perusal of these valuable documents, and 
permit them to copy such portions as they may think proper. 
