president's address. 261 



part of the Transactions of the Linnean Society which has just 

 been issued. Doridopsis, most of the known species of which 

 are Indian, is a genus closely allied in external character to 

 Doris, but differs from the latter in the total absence of spicules, 

 granules, or other calcareous bodies embedded in the dermal 

 envelope, and still more in the different position of the mouth 

 which is suctorial, and wholly devoid of tongue, spinous collar, 

 or jaws. Mr. Hancock has however been especially devoting 

 himself, during the past year, to the study of the anatomy and 

 physiology of the Tunicata in preparation for the work, which, 

 as has been already mentioned, he is about to bring out jointly 

 with Mr. Alder. 



Mr. Gr. Hodge has his " Catalogue of the Echinodermata of 

 Northumberland and Durham" in a forward state of preparation, 

 and it will at no distant period be ready for publication in our 

 Transactions. 



Mr. Howse has recently written two short papers for the Min- 

 ing Institute of Newcastle, which have been published in their 

 Transactions (Yols. XIII and XIV) : the first of these is " On 

 the Glaciation of the Counties of Durham and Northumberland" 

 the second " On the Boundary Line between the Millstone Grit 

 and Mountain Limestone in the North of England.'''' These are 

 two interesting papers on local geology, of the publication of 

 which perhaps many of our members are in ignorance. Mr. 

 Howse hopes to work this year on the Mountain Limestone, 

 with the intention of cataloguing the fossils from the southern 

 part of our district. 



Mr. Kirkby has been already referred to as allied with Mr. 

 Atthey in working up the animal remains of the Carboniferous 

 Strata, with a view of giving us a complete illustrated account 

 of them. This able geologist has also in hand a Monograph of 

 the Carboniferous Entomostraca, in which work he is joined by 

 Professor T. Rupert Jones. 



I have myself had my time so fully occupied during the past 

 year that there has been very little to give to the pleasure of 

 Natural History, and I have as yet been unable to complete the 

 second part of my paper " On the Genera and Species of British 



