280 MR. G. W. LAMPLUGH ON GLAC1A.L 



sandy and clayey streaks already mentioned as occurring in the 

 recess near the dock- entrance, and seeming to become gradually 

 scarcer both vertically and laterally as these beds were left. At 

 the landward end of the dock they occurred sparingly in the lower 

 part of the section, scattered through a stony clay with scratched 

 boulders, and were absent altogether from the upper portion, which 

 rose somewhat above sea-level. 



On collecting them I soon found that though they were numerous 

 as individuals, only a few species were represented, some of which 

 were well known to me from my researches amongst similar beds 

 on the coast of Yorkshire. The first collection which I made 

 I was obliged to discard, as I found that I had not been careful 

 enough in discriminating between the glacial shells and those from 

 the overlying recent sea-beach which had sometimes been washed 

 down over the sections. Afterwards, taking none except such as I 

 could be certain were imbedded in the clays, I collected the speci- 

 mens from which the following list has been compiled, the deter- 

 minations having been kindly undertaken by Mr. Clement Eeid, of 

 H.M. Geological Survey, and Mr. Edgar Smith, of the British 

 Natural History Museum. 



List of Shells from Glacial Beds at Esquimault, V. L 



Mytilus, sp. (imperfect). 

 Leda buccata, Sieenstr. 



arctica, Gra?/. 



pernula, Mull. 



Nucula inflata, Hanc. 

 Cardium islaudicum, Linn. 



groenlandicum, Chemn. 



r. Telhna edentula, Brod. ^ Sow. 

 Mya truncata, Linn. 

 arenaria, Linn. 



c. Saxicava rugosa, Linn., and var. 

 arctica. 

 Chiton (Katharina) truncatus, 

 Wood ( — C. sitkensis). 

 ? r. Purpura lapillus, Linn. 

 r. Buccinum inexhaustum, Verkril- 



zen. 

 c. Ealanus porcatus, da Costa, var. 

 Polyzoa. 

 Spirorbis (on pebbles). 



Notes. — The shells which were most abundant are marked c, those 

 which were rarest, r. 



I am not quite certain that Purpura lapillus belongs to the 

 glacial beds ; I only found one specimen, and this under somewhat 

 doubtful conditions. 



It will be noticed that Leda fossa, which is one of the four species 

 mentioned by Dr. G. M. Dawson, is not included in this list. I 

 asked Mr. Eeid if he could find this shell amongst the rather 

 numerous Ledw I submitted to him, and he replied "There is 

 nothing approaching Leda fossa in your collection." 



In some of those parts of the section which lay below sea-level, 

 where the clays were still saturated with moisture, these shells 

 were found in a very excellent state of preservation, the valves 

 being united and firmly closed as in life, the interior almost or 

 quite empty, and the outer Qase of the external ligament and the 

 brown epidermis of some of the species still remaining. Indeed, I 

 found specimens which looked fresher than the shells in the overlying 



