... LONDON, August Owing to the long prevalence of ftrong Wefterly winds, the foreign Mails due on Monday have not arrived this morning, nor have communications any kind been leceived from the Continent. gentleman arrived in town from the Britifh army on the fiontiersof Holland. He has brottght no int#Higence any import nice, fuither than that his Royal the Duke of York has quitted his pofition at ...