and not be obliged to go like beggars to their accounts to seek our due and be insulted by such scoundrels into the bargain. As to Hallamanin, they have not met yet, and when they do meet, I shall not go to them. I cannot bear such treatment, but it is not prudent to resent it too warmly just now. I believe you _must_ come here. I think fourteen days would settle matters. Besides my inability to battle such people, I really have not time to bestow on them.”[183] In subsequent letters Watt continued to urge Boulton to come to him. His headaches were constant, unfitting him for work. Besides, he could scarcely stir out of doors for the rain. “It rains here,” said he, “prodigiously. When you come, bring with you a waxed linen cloak for yourself, and another for me, as there is no going out now for a few miles without getting wet to the skin. When it rains in Cornwall, and it rains often, it rains solid.” [Illustration: CARDOZOS PUMPING-ENGINE, UNITED MINES.] [183] Watt to Boulton, from Chacewater, 16th October, 1779. Boulton MSS. [Illustration: UNITED MINES DISTRICT--ST. DAY IN THE MIDDLE DISTANCE. [By R. P. Leitch]] CHAPTER XIV. FINANCIAL DIFFICULTIES--BOULTON IN CORNWALL--ATTACK AND DEFENCE OF THE ENGINE PATENT. Boulton again went to Watt’s help in Cornwall at the end of autumn, 1779. He could not afford to make a long stay, but left so soon as he had settled several long-pending agreements with the mine proprietors. The partners then returned to Birmingham together. Before leaving, they installed Lieutenant Henderson as their representative, to watch over their interests in their absence. Henderson was a sort of Jack-of-all-trades and master of none. He had been an officer of marines, and afterwards a West India sugar-planter. He lost all that he possessed in Jamaica, but gained some knowledge of levelling, draining, and machinery. He was also a bit of an inventor, and first introduced himself to Boulton’s notice by offering to sell him a circular motion by steam which he alleged he had discovered. This led to a correspondence, which resulted in his engagement to travel for the firm, and to superintend the erection of engines when necessary.