J. M. presents his respects to Mr. Hassler with many thanks for the "Popular Exposition of the System of the Universe". politely sent & just recd; to which he adds his good wishes for the success, to wch. such a work executed with the known ability of the author can not fail to be entitled. Every insight into the grandeur & structure of the universe, having a happy tendency at once to expand the human mind, and to cherish its moral conceptions, astronomy in its most simple & intelligible developments, must always form a useful element in popular Education.