Additional Manuscripts a

CTJ thanks WW for his letter and interest in his claims to the discovery of etherism [see CTJ to WW, 24 April 1849]. He is sorry that WW has given up the idea of of doing an inductive history of physiology. CTJ has just completed his Report on the Geology and Mineralogy of the Copper and Silver bearing lands of the US and Lake Superior and submitted it to the Government [CTJ was First State Geologer of Maine, Rhode Island and New Hampshire and issued reports in 1837, 1838 and 1839. He was discharged in 1847, see DSB]. He gives a description of the content of his geological and mineralogical survey.