The future volumes will be abundantly furnished with original writings from persons of standing in the scientific world; and the practical Photographer will here find a full account of such improvements as may from time to time develope themselves. From the Editor's long practical experience in the Heliographic Science, he will be enabled to present the subject in a plain, clear and concise manner. Read what the Editors say of Humphrey's Journal:-- "We have received a copy of a valuable Journal (Humphrey's) published in New York, which has reached the 18th number of Vol. VI. ... We now have the pleasure of quoting from our transatlantic coadjutor."--_Liverpool Photographic Jour._ "Humphrey's Journal is practical as Well as scientific in character."--_American Journal of Science and Arts._ "It treats the subject knowingly, and with force."--_New York Tribune._ "It is both a popular and interesting publication."--_Mechanics' Magazine._ "It is highly useful to all who practice 'shadow catching.'"--_Ohio State Journal._ "The work is neatly gotten up, and contains many interesting varieties in this new field of science."--_Times._ "It should be hailed and encouraged, not only by Daguerreotypists themselves, but by every lover of Science and Art."--_The Democrat._ "We cannot too strongly urge all artists, and those persons who feel an interest in the Heliographic Arts and Sciences, to take a copy of the work."--_Sentinel._ "It is indicative of talent worthy of the important Art it is designed to elevate."--_American._ "This Art is entitled to its own organ, which could not have fallen into better hands than those of the editor of Humphrey's Journal."--_Transcript._ "It is a scientific work of interest and usefulness."--_Star of the North._ "This Journal answers many points heretofore regarded as inexplicable."--_Hudson River Chronicle._ "It is rich with interest."--_North American._ "It contains all the 'Improvements.'"--_Delta._ "It teaches us how to take our own portraits."--_Bee._ "It will cultivate a taste for Daguerreotypes."--_Commercial Advertiser._ "It should be in the hands of all."--_Reveille._ "It is the Daguerreotypist's friend."--_London News._ "It should be found in every library."--_Evening Journal._ _From some of our old subscribers._ "Humphrey's Journal has been the means of saving much time and money, for by its instruction I have been enabled to produce some of the finest Paper Pictures I have ever seen." W. P. "Don't fail to send me the Journal, for I would not be without it for _five_ times the amount of subscription. It is the only publication I can _depend_ upon." A. G. R. "Your treatment of the humbugs and humbugging members of the profession, is of the most valuable importance to us practical Daguerreians. Go on. God speed! Here is the amount for the renewal of my subscription." E. F. S. "How can any Operator afford to be without it?" L. L. H.