Key West, Fia: l'rivate letters from insurgent sourees bring the news of a big buttle foug-ht on August 31, near Santiago de 'uba, between the insurgen ts and Bpanish troops, commanded by Camellas, in which the insurgents completely routed the troops, killincr 000 soldierg and 80 ofticers and wonnding Camellas. 'J'lie Spanish papers report that the battle was loug-ht, but do not g-ive the details. (iihiiiis Will Appeal to l'ncle Sam. New York: Thomas Estrada P.ilma, the president of the Cuba revo tiouary junta, issued an address on the recent arrest of Cabana at l'enn's (Jrove, N. J. , using the incident as a basis for a plea to the United States Uovernraent for recognition of thé Cuban insurgente as belligerents. lie compares the present relations of Spain und Cuba as similar to those of America and England, and recalls the help extended by France to the United States.