,5 



> 

 v.2 



NOTICE. 



EARTH 



SCIENCES 



IN the present Catalogue it is intended to comprise 

 figures and descriptions of all the species of Marine Polyzoa 

 in the Collection of the British Museum, and from typical 

 specimens therein contained. 



This Collection, already valuable, especially in the pos- 

 session of Dr. Johnston's specimens, has recently been 

 materially augmented by the addition of numerous Austra- 

 lian and other forms, many of them new, procured by 

 Mr. J. Macgillivray, on the voyage of H.M.S. Rattlesnake. 

 It has also been much enriched by the liberality of Charles 

 Darwin, Esq., F.R.S., Dr. J. Hooker, F.R.S., Dr. Lyall, 

 R.N., R. M f Andrew, Esq., F.R.S., J. S. Bowerbank, Esq., 

 F.R.S., The Rev. David Landsborough, Mrs. Gatty, Miss 

 Cutler, Professor Edward Forbes, F.R.S., Dr. Greville, 

 J. Hyndman, Esq., Joshua Alder, Esq., Dr. W. Stanger, the 

 late W. Thompson, Esq., of Belfast, and others, who have 



