AN ELEMENTARY TREATISE ON QUATERNIONS BY P. G. TAIT, M. A. FORMERLY FELLOW OF ST. PETER'S COLLEGE, CAMBRIDGE τεκρακτύν, παγὰν ἀενάου φύσεως ῥιζώματ ̓ ἔχουσαν. SECOND EDITION, ENLARGED Cambridge AT THE UNIVERSITY PRESS; [All Rights reserved.] |