Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress (1901)
Boyd, James Penny, 1836-1910 · Philadelphia, A. J. Holman & co · leaf 216
his idea was the guiding prin-ciple in chemical investigations, and was most useful in aiding the classifica-tion of chemical compounds and bringing order out of the chaos of accumu-lating observations. But the search for radicles was in a sense a vain one. We now know thatno radicle exists as such… … MICHAEL FATtADAT. 198 TRIUMPHS AND WONDERS OF THE XIXth CENTURY advance. Laurent, together with his colleague Gerhardt (1816-1856), recog-nized the shortcomings of both the radicle and type theories in their earlierforms, and showed their inter-relation, when modified so as to do away withcertain…
Progress · Inventions
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