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The subscriber, having completed the Lithography of the plates of the " Crania 

 Americana,'' in which he has been almost exclusively engaged for two years past, 

 under the direction of the author, takes this opportunity to inform his friends and 

 the public generally, that he is now prepared to accept any orders with which 

 tJiey may be pleased to favour him. In thus calling their attention to the subject, 

 he would desire to state the favourable opinion expressed by many individuals, 

 and some public journals, of the execution of the drawings of the said work, 

 and the faithful delineation of those peculiarities that form so important a feature 

 in its anatomical character. From the time spent in this, added to a close 

 observation, and measurement of all the various parts of the natural objects, he 

 has the satisfaction of asserting, that but few inaccuracies will be detected by 

 comparing the copies with the originals. Much care has been taken to obtain a 

 high finish in the shading, as well as correctness in the drawing, in order to render 

 this work at once pleasing to the eye of the professional man, the amateur, or 

 the occasional reader. 



From a conviction that the experience gained in Lithography during the progress 

 of this interesting publication, will enable the subscriber to execute such drawings 

 as may be required, in a more thorough and satisfactory manner than would 

 otherwise be the case, he now offers his services to any who may feel disposed to 

 pubUsh anatomical plates; assuring them that as much labor will be bestowed 

 upon them as has been given to the most elaborate ones now offered to their view. 

 Portraits, landscapes, and every other kind of drawing, together with maps, plans, 

 circulars, &c., will also be received, and care taken to secure correct and well 

 finished copies. 



All persons interested in the art, are respectfully invited to call at No. 72 Dock 

 Street (to which place the office has been removed,) where specimens in all its 

 various branches may be seen and inspected. 



JOHN COLLINS. 



Philadelphia, 11th mo. 1st, 1839. 



