Excerpt from Practical Slide Making The aim of the present small volume is to supply in a concise form reliable information of all the best known methods for the production of lantern slide transparencies. At the present time many excellent lantern slide processes have fallen into desuetude and are seldom heard of, but it is hoped that their inclusion here will lead to enthusiastic workers resuscitating them on their; own behalf. Tothis end special care has been exercised in the preparation of the chapters dealing with such neglected processes as collodion (wet and dry) and collodio-aumen, in order that anyone who may be tempted to use them can at the outset be in possession of reliable formulae. 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.