Trengrouse expended £3000 on his experiments, and sacrificed to this one object--that of saving life--his capital, his business, and his health. He cut off the entail on Priske, which had belonged to the family for several generations, and sold it to enable him to pursue his experiments. There was much that was pathetic in his life: there were the long and frequent journeys to London from Helston, four days by coach, sometimes in mid-winter and in snowstorms, with the object of inducing successive Governments to adopt the rocket apparatus, meeting only with discouragement. Nor was this all. After all his own means had been exhausted, he received a legacy of £500 under a brother's will, and this sum he at once devoted to further endeavours with H.M. Government for the general adoption of his rocket apparatus. The Russian ambassador now stepped forward and invited Trengrouse to S. Petersburg, where he assured him that, instead of rebuffs, he would experience only the consideration due to him for his inventions. But Trengrouse's reply was, "My country first"; and that country allowed him, after the signal services he had rendered to humanity--to die penniless. His original design was to supply every ship with a rocket apparatus; as vessels were almost invariably wrecked _before_ the wind, the line might the more easily be fired from a ship than from the shore. Trengrouse once met Sir William Congreve, who also claimed to be the inventor of the war-rocket; and Trengrouse said to him in the course of their discussion, "As far as I can see, Sir William, your rocket is designed to _destroy_ life; mine is to save life; and I do claim to be the first that ever thought of utilizing a rocket for the saving of human lives."[10] Trengrouse moreover invented the cork jacket or "life preserver." This was a success, and has never been improved on. It has been the means of saving many hundreds of lives. He also built a model of a lifeboat, that could not be sunk, and was equal to the present lifeboats of the Royal Lifeboat Association in all respects except the "self-righting" principle. It was not until February 28th, 1818, after many journeys to London, and much ignorant and prejudiced objection that he had to contend against, such as is found so usual among Government officials, that Trengrouse was able to exhibit his apparatus before Admiral Sir Charles Rowley. A committee was appointed, and on March 5th it reported favourably on the scheme. In the same year the Committee of the Elder Brethren of Trinity House reported in high terms on the invention, and recommended that "no vessel should be without it." Thereupon Government began to move slowly; in the House the matter was discussed and haggled over. One speaker exclaimed: "You are guilty of sinful negligence in this matter, for while you are parleying over this invention and this important subject, thousands of our fellow-men are losing their lives." [Illustration: THE WRECK OF THE "ANSON"