This valuable Medical Journal is fast making its way into the medical ranks with marked energy. Its age is about the same as ours, and we are happy to see that with us it is prosperous; every number is received and read with pleasure. We find the following pithy notice in the Register, which is only one of many from the cute pen of the Editor, who it seems has 'cut up' as well as received a "New Dido." "We were presented with the first number of the "New Dido" by the publisher, and from the title, at first supposed that it might be in some way connected with the medical profession, inasmuch as some 'pranks' in a medical way have been 'cut up' in poetry, but in looking it over, we find that a couple of 'chaps' have started off for a drive, although what they are 'driving at,' the author has not yet disclosed. We think it likely enough they may "turn out" students, for they are evidently after subjects, which no doubt will be brought to light in the next number."--Good, Dr., that is worth the Dollar for the subscription. We have also received the 15th of March number, which has a fine likeness of Dr. John W. Francis. * * * * * =ADVERTISEMENTS.= =HILL'S= TREATISE ON DAGUERREOTYPE. TWO VOLS. IN ONE. The whole Art made easy, _and all the recent improvements revealed_. Containing also--The Process for Galvanizing Plates, and the whole Art of Electrotype; the Reproduction of Daguerre's Images by Tithonotype; an account of Calotype Paper, and other methods of Photogenic Drawing &c. By L. L. Hill, Westkill, Greene Co., N. Y. CONTENTS. History of Photography; Theory of the Process; Description of Apparatus; Account of Stock, such as Plates, Cases, Chemicals, and other articles to be purchased forming a complete Daguerreian Directory; Recipes, a large number; Polishing Plates; Coating the Plate; Camera; Mercury; Gilding; Coloring; Calotype, Tithonotype, &c. The above is but a partial outline of the subjects treated in this work. Nothing is omitted which is necessary to render any person of the requisite judgment and taste "a workman that need not be ashamed," The _Recipes_ have cost the author more than $500, and no pains or expense have been spared to render the work a complete Manual of Daguerreotype. TESTIMONIALS. The following extracts from a large number of highly flattering Testimonials from distinguished Artists and others: M. A. Root, an eminent Daguerreian, Philadelphia says, "I can freely say yours is, in my opinion, a most valuable Treatise on the Art of Daguerreotype." From the _Albany Express_, "We would recommend this useful work to all practising the Art."