...that our epoch, marked by great discoveries in optics, electricity, and magnetism, is characterized by the possibility of connecting phenomena by the generalization of empirical laws, and by the mutual assistance rendered by sciences which had long remained isolated. Now, he observes, simple...

...that our epoch, marked by great discoveries in optics, electricity, and magnetism, is characterized by the possibility of connecting phenomena by the generalization of empirical laws, and by the mutual assistance rendered by sciences which had long remained isolated. Now, he observes, simple...

...that our epoch, marked by great discoveries in optics, electricity, and magnetism, is characterized by the possibility of connecting phenomena by the generalization of empirical laws, and by the mutual assistance rendered by sciences which had long remained isolated. Now, he observes, simple...

...interest attached to these phenomena that the establishment of most of the observatories for magnetical research has taken its rise. Those who took part in...at profound depths in the interior of our planet, and in the superior regions of the atmosphere." But important as these phenomena undoubtedly are, they...

...Berlin to the mouth of the Oby, and thence to the Sea of Okhotsk. That which characterizes our epoch, at a time distinguished by grand discoveries in optics,...electricity, and magnetism, is the possibility of connecting phsenomena by the generalization of empirical Jaws, and the mutual aid afforded by sciences which had...

...that our epoch, marked by great discoveries in optics, electricity, and magnetism, is characterized by the possibility of connecting phenomena by the generalization of empirical laws, and liy the mutual assistance rendered by sciences which had long remained isolated. Now, he observes,...