There are also certain classes of freights which steam is better calculated than sailing vessels to transport; certain rich and costly goods which would either damage or depreciate if not brought speedily into the market. There are many articles also, as gold and silver ware, jewelry, diamonds, bullion, etc., and some articles of _vertu_ as well as use, which are costly, and have to be insured at high values unless sent on steamers; and which consequently can pay a rather better price. As in the case of specie, they are too valuable to be kept long on the ocean; but in the general traffic of the world there is so little of this class of freight that steamers can place no reliance on it as a source of income. These freights have abounded most between France and England and the United States. This is the principal reason why the New-York and Havre line of mail steamers has run on so unprecedentedly small a subsidy; a sum not more than half adequate to the support of a mail line but for that class of freights. The Cunard line has also derived a large sum of its support from the same source. All such articles passing by that line come from England, Ireland, and Scotland, where they are manufactured; and being shipped by British merchants, are given, as a matter of duty, to their own steamers. Another reason for the Cunard line getting most of those more profitable freights is that a steamer leaves every week; every Saturday; and shippers sending packages weekly are not compelled every other week to hunt up a new line, and open a new set of accounts, as would be the case if they attempted to ship by the Collins semi-monthly line.