THE British Association has recently received from Miss Hooker, daughter of Sir Joseph Hooker, a gift of the aneroid barometer which used to hang by the fireplace in Charles Darwin's ‘old study ...

M.LÉON TEISSERENC DE BORT has invented an aneroid mirror barometer, which is described in a recent number of La Nature. It is based on a method analogous to that well-known since the researches ...