From this table it appears that the principal mortality was in the second week of October. A general expectation had obtained, that cold weather was as fatal to this fever as heavy rains. The usual time for its arrival had come, but the weather was still not only moderate, but warm. In this awful situation, the stoutest hearts began to fail. Hope sickened, and despair succeeded distress in almost every countenance. On the _fifteenth_ of October, it pleased God to alter the state of the air. The clouds at last dropped health in showers of rain, which continued during the whole day, and which were succeeded for several nights afterwards by cold and frost. The effects of this change in the weather appeared first in the sudden diminution of the sick, for the deaths continued for a week afterwards to be numerous, but they were of persons who had been confined before, or on the day in which the change had taken place in the weather. The appearance of this rain was like a dove with an olive branch in its mouth to the whole city. Public notice was given of its beneficial effects, in a letter subscribed by the mayor of Philadelphia, who acted as president of the committee, to the mayor of New-York. I shall insert the whole of this letter. It contains, besides the above information, a record of the liberality of that city to the distressed inhabitants of Philadelphia. "SIR, "I am favoured with your letter of the 12th instant, which I have communicated to the committee for the relief of the poor and afflicted of this city. "It is with peculiar satisfaction that I execute their request, by making, in their name, on behalf of our suffering fellow-citizens, the most grateful acknowledgements for the seasonable benevolence of the common council of the city of New-York. Their sympathy is balm to our wounds. "We acknowledge the Divine interposition, whereby the hearts of so many around us have been touched with our distress, and have united in our relief. "May the Almighty Disposer of all events be graciously pleased to protect your citizens from the dreadful calamity with which we are now visited; whilst we humbly kiss the rod, and improve by the dispensation. "The part, sir, which you personally take in our afflictions, and which you have so pathetically expressed in your letter, excites in the breasts of the committee the warmest sensations of fraternal affection. "The refreshing rain which fell the day before yesterday, though light, and the cool weather which hath succeeded, appear to have given a check to the prevalence of the disorder: of this we have satisfactory proofs, as well in the decrease of the funerals, as in the applications for removal to the hospital. "I have, at your request, this day drawn upon you, at sight, in favour of the president and directors of the Bank of North America, for the sum of five thousand dollars, the benevolent donations of the common council of the city of New-York.