20 [Assembly 



4th. That the expensive and wasteful process of hackling is 

 entirely superseded by Dr. Leavitt's processes, and the prepared 

 material is delivered from the last of the cleansing processes in 

 rovings, ready to be submitted to the usual spinning machines. 



5th. That the flax cleaned, bleached, and formed into rovingSj. 

 ean, we believe, be produced at a cost much less than that of 

 rotted and hackled flax unbleached, while the inventor claims^ 

 and adduces satisfactory arguments to prove the probability that 

 flax ready for spinning into white thread will not exceed good 

 eotton in its cost. 



■ 6th. Dr. Leavitt also claims that by a process of Kyanizing, 

 applied during the preparation of both flax and hemp, the cordage 

 made therefrom is rendered more durable and stronger, while the 

 surface of the yarn is rendered smoother. 



Admitting that the processes of Di. Leavitt have no other 

 advantages than those which your committee can state to be 

 absolutely certain, your committee is of opinion that their result 

 must be attended with very important consequences, and will, if 

 carried into operation on an extensive scale, add much to the* 

 agricultural and manufacturing wealth of the United States. 

 (Signed.) JAMES RENWICK, Ch'n., 



JOHN TR ASTERS, 

 JAS. J. MAPES, 

 EDWIN SMITH, 



Committee. 

 New-York, 24th May, 1854. 



REPORT ON THE PLANS OF THE APPARATUS AND INSTRUMENTS OF 

 HENRY COWING. 



That they have examined the plans of the apparatus and in- 

 struments of which Mr. Henry Cowing claims the invention, and 

 which have been submitted by him for examination. 



The several articles submitted by him ar® as follows, ¥iz : 



