Dr. Mead, about 1714, lived at Chelsea; about the same date there lived in the same locality Dr. Alexander Blackwell, whom we introduce here chiefly on account of his singularly unfortunate life and very tragical end. Blackwell was a native of Aberdeen, studied physic under Boerhaave at Leyden, and took the degree of M.D. On his return home he married, and for some time practised as a physician in London. But not meeting with success, he became corrector of the press for Mr. Wilkins, a printer, and some time after commenced business in the Strand on his own account, and promised to do well, when, under an antiquated and unjustly restrictive law, a suit was brought against him for setting up as a printer without his having served his apprenticeship to it. Mr. Blackwell defended the suit, but at the trial in Westminster Hall a dunderheaded jury, probably of narrow-minded tradesmen, all anxious to uphold their objectionable privileges, found a verdict against him, in consequence of which he became bankrupt, and one of his creditors kept him in prison for nearly two years. By the help of his wife, who was a clever painter and engraver, he was released. She prepared all the plates for the ’Herbal,’ a work figuring most of the plants in the Physic Garden at Chelsea, close to which she lived. A copy of this book eventually fell into the hands of the Swedish Ambassador, who sent it over to his Court, where it was so much liked that Dr. Blackwell was engaged in the Swedish service, and went to reside at Stockholm. He was appointed physician to the King, who under his treatment had recovered from a serious illness. Dr. Blackwell had left his wife in England; she was to follow him as soon as his position was placed on a solid basis. But ere this could take place he was accused of having been engaged with natives and foreigners in plotting to overturn the constitution of the kingdom. He was found guilty, and sentenced to be broken alive on the wheel, his heart and bowels to be torn out and burnt, and his body to be quartered. He was said, under torture, to have made confession of such an attempt, but the real extent of his guilt must always remain problematical. That he, a person of no influence, and unconnected with any person of rank, should have aimed at overthrowing the constitution seems very improbable. It is more likely that he was made a scapegoat to strike terror into the party then opposed to the Ministry. The awful sentence passed on him, however, was commuted to beheading, which fate he underwent on July 29, 1747. He must have been a man of great nerve and a humorist, for, having laid his head wrong, he remarked jocosely that this being his first experiment, no wonder he should want a little instruction!