Xv1 CLASSIFIED SUMMARY OF THE CONTENTS OF VOLS. I-VI. 
PORIFERA. 
HEXACTINELEIDA . : . By R. Kirkearrick , ‘ : - Vol i 
TEPRAXONIDA : . By R. Kirkpatrick : : : - Ay. IY 
CALCAREA . : { By @) BodeNin Ane : : Pe ANY 
BOA AIN Ae 
MUSCI. 
By JuLes Carpor ‘ : ; , ; : ao LIUIL 
MARINE ALGAL. 
PHAOPHYCE® AND FroripE# By A. and EK. 8. Gere. ; : : a UL, 
CORALLINACEE ; . By M. Fostie F : : : . allie 
FRESHWATER ALG/L. 
By F. EK. Frirscu, D.8c., Pa.D., F.L.S. ; = MIL 
LICHENES. 
By Dr. Orro Vernon DARBISHIRE ae 
GHOLOGY AND MINERALOGY. 
FIELD-GEOLOGY . i . By H. T. Ferrar, M.A., F.G.S. : : yee 
XOCK-SPECIMENS . 4 )) By God. Peron. MEA Di So.shiGas, : a Al; 
