CORRESPONDENCE. 301 



us public property, and sent to the commander of the Expedition, to form the materials of a 

 report to be made at the termination of the cruise. By some cause, of which I am still ignorant, 

 the reports and collections in relation to botany have been diverted from the prescribed channel, 

 and hence the delay which has prevented as full and complete a publication in this department 

 as I had contemplated. 



With great respect, I have the honor to be, your obedient servant, 



M. C. PERKY. 



Hon. Lewis Cass, Secretary of State, Washington, D. C. 



Note. — See General Order in Appendix. 



