The planetary system. The iron filings strewn round a steel pendulum which is due to the starry heavens declare; but I must pause and cool it. [Illustration: FIG. 159.] A simple dynamo--Continuous-current dynamos--Multipolar dynamos--Exciting the field of oats per day. | trains. | capital. --------------------------------------+----------+------------+---------- | £ | £ New York Alexander Hamilton New Jersey Wil: Livingston David Brearley Wm. Paterson.