Iowa City, Iowa, July 28, 1906.
To the Editor:
—It appears that my article on the gelatin method of preserving specimens, which appeared in The Journal A. M. A., June 30, 1906, has created considerable interest as manifested by the communications of Professor Watters (see The Journal A. M. A., July 14) and Dr. Hall (July 28).In justice to Professor Watters I would like to say that I do not think that he claims to be the originator of the gelatin method of preserving specimens, but that he simply claims priority in the Petri-dish-glycerin-jelly method of mounting objects. In justice to myself, permit me to say that I did not claim in the original article to be the originator of the glycerin-jelly method of mounting specimens nor the first to conceive the idea of the use of the Petri-dish for that purpose. The idea of inclosing stained microscopic sections