By the National Convention he was consulted on the means of improving the manufacture of assignats, and of increasing the difficulty of forgery. He turned his attention to matters of rural economy, and, by improved methods of cultivation, on scientific principles, he increased the produce of an experimental farm nearly one half. In 1791 he was invited by the Constituent Assembly to digest a plan for simplifying the collection of taxes: the excellent memoir which he produced on this subject was printed under the title of ‘The Territorial Riches of France.’ He was likewise appointed a Commissioner of the National Treasury, in which he effected some beneficial reforms.

During the terrors of Robespierre’s tyranny, Lavoisier remarked that he foresaw he should be stripped of all his property, and accordingly would prepare to enter the profession of an apothecary, by which he should be able to gain a livelihood. But the ignorant and brutal ruffians who were then in power had already condemned him to the scaffold, on which he was executed, May 8, 1794, for the pretended crime of having adulterated snuff with ingredients destructive to the health of the citizens! On being seized, he entreated at least to be allowed time to finish some experiments in which he was engaged; but the reply of Coffinhall, the president of the gang who condemned him, was characteristic of the savage ignorance of those monsters in human form:—“The Republic does not want savans or chemists, and the course of justice cannot be suspended.”

Lavoisier in person was tall and graceful, and of lively manners and appearance. He was mild, sociable, and obliging; and in his habits unaffectedly plain and simple. He was liberal in pecuniary assistance to those in need of it; and his hatred of all ostentation in doing good probably concealed greatly the real amount of his beneficence. He married, in 1771, Marie-Anni-Pierrette Paulze, a lady of great talents and accomplishments, who after his death became the wife of Count Rumford.

SYDENHAM.

The celebrated physician, Thomas Sydenham, in many respects the most eminent that England has produced, was born in the year 1624, at Wynford-Eagle, in Dorsetshire, where his father, William Sydenham, enjoyed a considerable estate. The mansion in which he was born is now converted into a farm-house, and stands on the property of Lord Wynford.

In the year 1642, when eighteen, he was admitted as a commoner at Magdalen-Hall, Oxford; but quitted it in the same year, when that city became the head quarters of the royal army, after the battle of Edge-hill. He was probably induced to take this step by reasons of a political nature; for we find that his family were active adherents of the opposite party. Indeed he is said, though on doubtful authority, to have held a commission himself under the Parliament during his absence from Oxford; and his elder brother, William, is known to have attained considerable rank in the republican army, and held important commands under the Protectorate.

The political bias of his family is not without interest, as affording a probable explanation of some circumstances in his life which would otherwise be rather unaccountable,—such as the fact, that though he reached the first eminence as a practising physician, he was never employed at court, and was slighted by the college, who invested him with none of their honours, nor even advanced him to the fellowship, though a licentiate of their body, and qualified by the requisite University education.

When Oxford was surrendered to the Parliament, Sydenham determined to resume his academical studies; and passing through London