This catalogue documents the Philadelphia Water Color Exhibition held annually at the Pennsylvania Academy of the Fine Arts. Volumes 11-14 cover the years 1906-1909 and include detailed descriptions and reproductions of the artworks on display. The catalogue offers a valuable insight into the development of the watercolor medium and the artistic trends of the early 20th century. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.