APPENDfiC. ill. 



NO IV. 



This is to certify, that on the 26th of October, 1828, 1 examined a temporary 

 Rudder made and fitted to the George Clinton, by Captain Rawson, on his re- 

 turn passage from Liverpool, that and the preceding month, and found it the 

 same in every respect as the one v^hich Captain Marshall claims as of his own 

 invention, and which was made more than twelve months after the one made 

 by Captain Rawson. I also examined the Rudder fitted to the Britannia, when 

 she arrived in New York, in Nov. 1827, and the difference in construction 

 was so little, that they appeared to have been made by one and the same per- 

 son. Joseph L. Gardner, 



October 2d, 1828. Master of the Ship Spartan. 



New York, December 14, 1828. 



B. SlLLlMAN, KSft. 



Dear Sir — Your letter respecting the temporary Rudder, of which by the 

 request of yourself and Captain B. Hall, (R. N.,) I gave you some account 

 last fall, has been received, and if I have committed myself in any way in so 

 doing, it has been done without the slightest intention of arrogating to myself 

 the least credit as regards its invention. I have a perfect recollection that the 

 one in question varies very materially from the one I had a description of, 

 fitted by Captain Rawson, and I am sure that I admitted to Captain Hall and 

 others, and to Captain Rawson himself, who was at the time of my arrival on 

 the spot, all that part resembling his. Captain Rawson is not here at present, 

 and as I sail again in the course of a day or two, it is entirely uncertain when 

 we may meet. I have no great disposition to contend with him on the sub- 

 ject ; my only motive for giving a description of it, was purely to give publicity 

 to what I consider the best thing ever adopted for the purpose, and that others, 

 that might be placed in that unfortunate situation, may be benefited by it ; and 

 whether invented by me or him, or both, is to me of very little consequence, 

 and not worth contending about. But why not come forward before ? It is 

 certainly due to me that he should furnish you with a drawing and model of 

 the one he actually fitted, and then it may be seen wherein it varied. The 

 Rudder in question also bore some, and perhaps equal, resemblance to one that 

 I had had a description of, fitted by some person out of Boston, but I believe it 

 was admitted at the time, by all who saw it, to vary very much from any one 

 that was ever brought into notice before ; however, I shall leave this subject 

 to your own good judgment, to dispose of as you may think proper. 



Respectfully and sincerely. 

 Your obedient servant, 



Cha's H. Marshall. 



P. S. I presume, could I have a personal interview with Captain Rawson 

 en the subject, it would be an advantageous one to both parties. 



New York, February 23, 1829. 



MR. BEN;tAM:iJV SILLIMAX. 



Dear Sir — When your favor of November 9th reached New York, I was 

 absent on a voyage to Europe, and a friend whom I had requested to attend to 

 any communication from youj was soon after I left, silso called away ; your 



