At present, an alteration for the better is making in the oval chuck, and a few additional chucks, rest, etc., are making to the lathe.

When these are finished, I shall have it at Billinger's until you return, or as you otherwise direct.

I am going on with my drawings for a complete machine, and shall be glad to see you here to judge of them." The drawings were made, but the machine was never finished.
"Invention," said Watt, "goes on very slowly with me now." Four years later, he was still at work; but death put a stop to his "diminishing-machine." It is a remarkable testimony to the skill and perseverance of a man who had already accomplished so much, that it is almost his only unfinished work.

Watt died in 1819, in the eighty-third year of his age, to the great grief of Murdock, his oldest and most attached friend and correspondent.
Meanwhile, the firm of Boulton and Watt continued.

The sons of the two partners carried it on, with Murdock as their Mentor.