Palæontologists

These labours of my cotemporaries are about to be augmented by a comprehensive and very useful publication of the veteran geologist Dr. Bigsby, who, with unwearied assiduity and acumen, has tabulated the results of the labours of palæontologists of various countries, and combined them with his own extensive observations on the Silurian rocks of North America, in his work ‘Thesaurus Siluricus.’