Excerpt from The British Journal of Photography, Vol. 21 Mr. King has had two dialysers made after his own model, and, as he has left one of them at our cihoe to be used in our own experi ments and also to show to such as are interested, we here give a de scription of the instrument. A dialyser, we may state. Is a vessel made of any kind of material that cannot be acted upon by the liquid in which it is to be placed or which is to be contained in it, but it must be a vessel without a bottom it may, in short, consist of a deep frame alone. But it must have a bottom of a certain kind, and upon this depends its value. 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.

Coming at a pivotal time in UK politics, Portrait of Britain, the British Journal of Photography's annual photography exhibition, is back for 2019 and Hoxton Mini Press will once again be producing the accompanying publication. The winning photographs from this open-call competition are selected by a panel of expert judges and will be displayed on digital billboard screens nationwide at the same time as the book's launch where they are seen by over 10 million people. These captivating portraits celebrate the diversity, culture and identity of Britain at a critical time in its history.

Now in its third year, Portrait of Britain is an annual photography exhibition showcasing 100 of the best portraits taken by people throughout the country. The exhibition will re-launch in September 2018 but for the first time with a book, Portrait of Britain, published by Hoxton Mini Press in collaboration with the BJP. It will feature 200 photographs, including those from the exhibition, alongside information about each image. These images celebrate the diversity, culture and identity of Britain today.

Following the success of Portrait of Britain and Portrait of Humanity, this second edition of the latter brings together 200 new portraits taken by photographers of all levels from all over the world, selected from tens of thousands of entries. The publication supports a world-touring exhibition which will visit USA, India, Hungary and among other places, bringing global exposure to the book. Each image in the book is accompanied by a short, telling story from each photographer, bringing home the humanity of those photographed.