Excerpt from Introductory Treatise on Lie's Theory, of Finite Continuous Transformation GroupsIt now remains to express my gratitude to two friends for the great services which they have ren dered me during their reading of the proof-sheets. Mr. H. T. Gerrans, Fellow of Worcester College, Oxford, at whose suggestion this work was under taken, found time in the midst of many pressing engagements to aid me with very helpful criticism. Mr. H. Hilton, Fellow of Magdalen College, Oxford, and Mathematical Lecturer in the University College of North Wales, has most generously devoted a great deal of time to repeated corrections of the proofs, and suggested many improvements of which I have gladly availed myself. With the help thus afforded me by these fi'iends I have been able to remove some obscurities of expression and to present the argument in a clearer light, though I fear I must still ask the indulgence of my readers in many places. Finally I desire to thank the Delegates of the Oxford Uni versity Press for undertaking the publication of the book, and the staff of the Press for the great care which they have taken in printing it.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.