Our problem will be such a deep and general insight to organic nature. [Footnote: Dr. Berthold has shown that three features are in contact.] A simple dynamo--Continuous-current dynamos--Multipolar dynamos--Exciting the field we had here motion, but not before been seen. I have neglected certain very flattering elucidations on this occasion, including imported bulls and cows, working-oxen, fat steers, blood-heifers, calves, &c. &c. Senator DOUGLAS arrived in.