A history of electricity : the intellectual rise in electricity from antiquity to the days of Benjamin Franklin (1898)
Benjamin, Park, 1849-1922 · New York : J. Wiley & Sons · leaf 187
ce from the place ^ From Bertelli, cit. sup. l82 THE INTEIvLECTUAI. RISE IN ELECTRICITY. where you are, and by means of the compass as he de-scribes it you have simply to follow the course you haveplotted. There would not be any difficulty in steering amodern ocean steamer by means of Peregrinuss… … PEREGRINUS COMPASS. ing in order to north by east, north northeast, northeastby north, northeast, northeast by east, and so on) werenamed. The presence of the little needle of copper or silverwhich Peregrinus thrusts through the pivot at rightangles to the iron needle is a matter of curious…
Electricity · Magnetism
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