512 [Assembly 



Mules, 255 



New fruits and plants, 334 ,3G1 ,400 



Physiology of the earth, 226 



Potato from Mexico, 316 



Wheat, 280 



Trifolura, trefoil, the three leaved grass, : 238 



Van Wyck, on the American wild and tame turkey, 1 53 , 168 



Vitality of seeds, « , , . , 357 



Water cress, 244 



Wheat from a mummy, 394 



Wild berries, 225 



Wool from Virginia, 1 30 



ILLUSTRATIONS. 



Portrait of Gen. Jeremiah Johnson, « „ . Frontispiece. 



Alexandre's sub-marine vessel, ; , 86 



Cochran's quartz crushing machine, 91 



Mc Adams's machine for paging books, (3 cuts,) . , 94 



Brundred's patent throstle, 97 



Davis's dovetailing machine, 98 



Gee's bottling machine, 101 



Dick's anti-friction cheese press, 103 



Hawes's counting-house calendar clock, (2 cuts,) 104 



Gwynne's centrifugal balance pump, (4 cuts,) 105 



Hubbard's carriage gearing, 108 



Jackson's grates and fenders, 121 



Copley's globes, 125 



Taber's short-horn bull " Back- woodsman," 134 



Tui'kies, American Tame, 1 53 



