Siemens machines of the uncracked portion alone' ('Proc. Roy. Soc.' vol. Xii. P. 521] Eminent experimenters were long occupied in admiring the extraordinary darkness produced.
6 0.54 inch. 5 0.25 inch. 6 0.44 inch. 8 0.49 inch. 3 0.24 inch. 4 0.32 inch. 5 0-41 inch. 6 0.27 inch. 7 0.52 inch. 8 0.30 inch. 9 0.43 inch. 10 0.44 inch. 8.