Unable to accept Berzelius's doctrine of the unalterability of organic radicals, he also gave a new interpretation to the meaning of copulae under the influence of his fellow-worker Edward Frankland's conception of definite atomic saturation-capacities, and thus contributed in an important degree to
copulae הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד