78 CORRECTIONS. 
European artists, viz: Mr. Weber, of Berlin, Prussia, and Mr. Davesne, Mr. Rebuftfet, Mr. 
Martin Schmelz, and the brothers Picart, all of Paris, France. The high order of excellence 
of the engravings, especially of those of the Picarts and of Schmelz cannot fail to strike those 
who examine the plates. 
In the figures of the embryos in plate 24, 34, 41 and 47, the line indicating the division of 
the cotyledons does not show in all the copies. The embryo in plate 24 and 34 resembles that 
of pl. 74, fig. 9 and 10; and that of plate 41 and 47, is like that on plate 55. 
GEORGE ENGELMANN. 
Sr. Louris, November, 1858. 
