Trebel, George. [from old catalog] · New York, F. Tousey · leaf 61
e time there isabreakinthe continuity of the line traced on Y. If, further,each needle is moved down a hairs breadth each time it trav-erses ats respective sheet, theii we shall have an exact fac-similed the writing on the tin foil produced on the chemically-prepared paper, except that whereas the… … The pens are not, of course, held and guided by humanhands, but by complex machinery. The rigorous exactnessrequisite in the movement of the two pens is secured by theabsolute synchronisms in the vibration of two pendulums, oneat each terminus, controlled by the electric current. Figure 3…
Electricity
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![An illustration from Nouiciis adolfscentibus ad astronomicam rempu. capessenda[m] aditu[m] i[m]petra[n]tib[us], per breui rectoq[ue] tramite a uulgari uestigio semoto, Ioannis de Sacro Busto Sphe̜ricum opusculu[m] Georgiiq[ue] Purbachii I[n] mot[us] planetaru[m] accuratiss. theorice̜ Necno[n] contra Cremonensia in eorunde[m] planetaru[m] theoricas delirame[n]ta Ioa[n]nis de Mo[n]te Regio disputatio[n]es ta[m] accuratiss. q[uam] utiliss. dicatu[m] opus utili serie contextu[m] inchoat.](https://img.insideoutlibrary.com/img/200/ia-nouiciisadolfsce00sacr-8-0.webp)