Upon the whole, I cannot help thinking the garrison is of advantage; and I cannot conceive the garrison to be in any great danger. The men can be brought off at any time, but the stores may not be so easily removed; yet I think they can be got off, in spite of them, if matters grow desperate. This post is of no importance only in conjunction with Mount Washington. I was over there last evening. The enemy seem to be disposing matters to besiege the place; but Colonel Morgan thinks it will take them till December expires before they can carry it.