FIRESIDE SCIENCE. 



A SERIES OF 



POPULAR SCIENTIFIC ESSAYS UPON SUBJECTS 

 CONNECTED WITH EVERY-DAY LIFE. 



JAMES R. NICHOLS, A. M., M. D., 



AUTHOR OF "CHEMISTRY OP THE FARM AND THE SEA," AND EDITOR OF 

 " BOSTON JOURNAL OF CHEMISTRY." 



NEW YORK: 

 PUBLISHED BY HURD AND HOUGHTON. 



1872. 



