LETTEE OF TRANSMITTAL. XV 



other labors, have contributed the material within discussed to the interest- 

 ing subject of antiquities. 



The quarto illustrations of many of the articles from the Santa Bar- 

 bara collections are reproduced by the Heliotype Company of Boston, 

 Mass., while the colored plates, the originals of which were executed with 

 creditable skill and taste by Mr. H. J. Morgan, have been lithographed at 

 the well-known and excellent establishment of Thomas Sinclair & Son, 

 Philadelphia, Pa. 



Very respectfully, your obedient servant, 



GEO. M. WHEELER, 



Lieutenant of Engineers, in Charge. 

 Brig. Gen. A. A. Humphreys, 



Chief of Engineers, United States Army, Washington, D. C. 



