S introductory Remarks* 



and establish upon the bosom of the deep the luxuries and 

 accommodations of the land. 



The successful execution of this magnificent design was first 

 witnessed upon the waters of the Hudson, but is now imitated 

 in almost every civilized country ; and it remains to be seen 

 whether they will emulate us by transporting, by the same 

 means, and against the same obstacles, the most formidable 

 trains of artillery. 



The mechanical inventions of this country are numerous ; 

 hiany of them are ingenious, and some are highly important* 

 In no way can a knowledge of them be so readily and exten- 

 sively diffused as in a scientific journal. To this object^ 

 therefore, a part of our labours (should there be a call for it,) 

 will be devoted, and every necessary aid will be given by 

 plates and descriptions. 



Science and art mutually assist each other ; the arts furnish 

 facts and materials to science, and science illuminates the path 

 of the arts. 



The science of mathematics, both pure and mixed, can 

 never cease to be interesting and important to man, as long, 

 as the relations of quantity shall exist, as long as ships shall 

 traverse the ocean, as long as man shall measure the surface 

 or heights of the earth on which he lives, or calculate the dis- 

 tances and examine the relations of the planets and stars ; and 

 as long as the iron reign of war shall demand the discharge of 

 projectiles, or the construction of complicated defences. 



In a word, the whole circle of physical science is directly 

 applicable to human wants, and constantly holds out a light to 

 the practical arts ; it thus polishes and benefits society, and 

 every where demonstrates both supreme intelligence, and 

 harmony and beneficence of design in the Creator. 



