ILLUSTRATIONS. 



I'LATES. 



Page 

 Plate I. — A red cedar slab showing the first stage of destruction induced 



by Polyporus juniperinus 22 



II. — A piece of the trunk of a red cedar split open to show large hole 



caused by PoJ>/porus junipcnnus 22 



III. — Cross section of a red cedar trunk showing holes caused by 



Polyporus juniperinus 22 



IV. — Polyporus juniperinus on Junlperus virginiana 22 



V. — Upper figure shows radial view of block of red cedar in early 

 stages of decay; lower figure shows end view of several i^ockets 



uniting 22 



VI. — Cedar log showing large pocket, filled with brown wood, formed 



by Polyporus carneus 22 



VII. — Different stages of destruction of cedar wood 22 



FIGURES. 



Fig. 1. — Longitudinal section of a cedar log showing position of holes caused 



by Polyporus juniperinus 9 



2. — Polyx>orus juniperinus growing out from cedar trunk 15 



3. — Trunk of a red cedar showing hole under an old branch ... ..... 19 



6 



