Excerpt from Applied Science, Vol. 22: April, 1909 Nor can we say that this remarkable progress is to end here, for many have been the calls for the erection of plants, and one firm capable of nearly barrels per day capacity, have if their machines run at their full capacity day and night until the end'ot the year, sufficient orders now to take all they make, and are thus seriously considering the duplication of their plant. If you will pardon an interpolation at this point, may I say that it is an erroneous conception of the manufacture of cement that has led people to believe that plants - can be erected and worked profitably on a small scale and at small cost, and to disprove this theory Will be in some respects the aim of. This paper. It would be advisable that we at this juncture acquaint our selves with the material under discussion and find out what Portland cement really is. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.