In January last, three hundred and sixty American prisoners were sent on board this ship. Great mortality prevailed among the Danish prisoners, prior to the arrival of our countrymen, on board the Bahama. The Danes occupied her main deck, while we occupied the lower one.--When our poor fellows were tumbled from out of one ship into this, they had not sufficient clothes to cover their shivering limbs, in this coldest month of the year. They were, indeed, objects of compassion, emaciated, pale, shuddering, low spirited, and their constitutions sadly broken down.--Their morbid systems were not strong enough to resist any impression, especially the contagion of the jail fever, under which the Danes were dying by dozens. Out of three hundred and sixty one Americans, who came last on board, eighty-four were, in the course of three months, buried in the surrounding marshes, the burying place of the prison ships. I may possibly forgive, but I never can forget the unfeeling conduct of the British, on this occasion. Why send men on board a crowded prison ship, which they knew was infected with a mortal contagion? Their government _must_ have known the inevitable consequences of putting three hundred debilitated men on board an infected ship, where there were not enough well to attend on the sick.--If we, Americans, ever treated British prisoners in our hands, in this cruel manner, the facts have never reached my ears. Here was an opportunity for redeeming the blasted reputation of the British, for the horrors of their old Jersey prison ship, in the revolutionary war. But they supposed that our affairs were so low; and their own so glorious, that there was no room for retaliation. The surrounding marshes were already unhealthy, without adding the poison of human bodies, which were every hour put into them.--Several persons, now prisoners here, and I rank myself among that number, had a high idea of British humanity, prior to our captivity; but we have been compelled to change our opinions of the character of the people from whom we descended. The commander of the Bahama, Mr. W. is a passionate and very hot tempered man, but is, upon the whole, an humane one. We have more to praise than to blame in his conduct towards us. He is not ill disposed to the Americans, generally, and wishes for a lasting peace between the two contending nations. His mate is the reverse of all this, especially when he is overcharged with liquor.