Detroit Daily Advertiser (Detroit, MI), July 23, 1844

The owners of the Propeller HERCULES, Messrs. Hollister & Co. contemplate substituting one of Loper's screws in place of the present one used on that vessel, which, it is presumed, will facilitate the speed of the HERCULES, and be a great saving of time and fuel. The much greater ease with which the engine performs with the Loper screw than with the Ericsson, together with the causing less jar, thereby keeping both vessel and engine in better repair, are among the inducements for trying the experiment. As the Loper propeller does not cost as much as the Ericsson, in the first place, and as they are represented by scientific men, as not requiring so much to keep them in repair, it is reasonable to suppose the experiment will be an advantageous one. The agent for Loper's propellers on the Lakes, is, we understand, J. N. Elbert, Esq, of Detroit. Buff. Gaz.