This garden was formerly situated on the _Cours-Dauphin_, but, the municipal administration wishing to render that portion of the town named Martainville, more healthy, entertained the project of opening a street at the entrance of the town, on the ground occupied by this garden; in consequence they sought another place, more suitable for a botanical garden. The place fixed upon, is the _park of Trianon_, where people formerly went, to visit the fine hot houses, and rare collection of dahlias and other plants, which belonged to a distinguished english florist, Mr Calvert. This new botanical garden, is situated at the extremity of the rue d'Elbeuf, and forms a square of about 45,500 metres (or yards) surface. Mr Lejeune, an architect, gave the plan of this garden. LECTURES ON CHEMISTRY. These lectures take place every year, (beginning the 15th november), on tuesdays and saturdays at one o'clock, in one of the halls of the ancient convent of Saint-Marie. The lectures are principally on the application of chemistry to arts and industry. LECTURES ON NATURAL PHILOSOPHY. These lectures were instituted in 1835; they take place twice a week in the amphitheatre at Saint-Marie. PUBLIC LESSONS IN DRAWING. This school, founded by Mr Descamps, the author of the _lives of flemish painters_, is now established at Saint-Marie. The lessons commence in the month of november and finish in the month of august, from one o'clock till three. LECTURES ON NATURAL HISTORY. They take place in the amphitheatre, which is given for this science, and is situated at Saint-Marie, Poussin street. The lectures take place on tuesdays and saturdays, during the winter, at eight o'clock in the evening. There are besides, at Saint-Marie, every sunday, lectures on geometry and mechanics applied to arts and manufactures, and lectures also on commercial law and book keeping. SECONDARY SCHOOL OF MEDICINE. The different branches are taught in the hospitals, by the physicians who are attached to these establishments. THEATRES. The _Théâtre-des-Arts_ at the corner of the rues _Grand-Pont_ and des _Charrettes_, was erected by Francis Gueroult, an architect of Rouen. The first stone was laid on the 18th june 1774, and the opening took place the 29th june 1776, on Saint-Peter's day and the fête of Corneille. This theatre was altered and lighted with gas, in 1835, and will contain about seventeen or eighteen hundred persons. The ceiling was painted by Lemoine, a native of this city, and represents the _apotheosis of Corneille_. The peristyle fronting the rue des Charrettes is in the form of a quarter of a circle and is composed of columns of the ionic order. The medallion of Pierre Corneille is sculptured on the entablature which is supported by these columns, and on each side of the medallion, we perceive Melpomene with a dagger, and Thalia with a mask. The performers for operas and comedies are generally good.