458 Proceedings of the 



that will be beneficial towards clearing up doubts, I shall be 

 well rewarded. 



Supplement to the paper of the Lamellaria tentaculata of the 14th 

 April 1858. 



I am delighted that I did not send away the paper on 

 Lamellaria last night. I took a second thought, and about 

 11-30 p.m., out microscope, got the nidi and examined them 

 in water as hitherto, I clearly saw the cilia at play. I then 

 with a pair of sharp scissors, cut the nidus into two pieces, 

 removed one part, and then gently squeezed out the young 

 from the other, added a little water, laid a piece of glass over 

 all, and then had the delight of seeing the " little strangers " 

 better than I ever did before ; they are enclosed in a beau- 

 tiful nautilus-shaped shell, and this envelope is perfectly trans- 

 parent. These beautiful objects remind me of the young of 

 the Nudibranchiate animals, and the Aplysia, &c. 



Having now got a step farther in knowing how to handle 

 these beauties, I must try to get farther. 



[Mr James Macdonald, Academy, Elgin, has since informed 

 Dr Smith that the L. tentaculata is also found in considerable 

 abundance in that neighbourhood,] 



(2.) A notice of Natural Printing of Sea-weeds on the Rocks in the 

 vicinity of Stromness, Orkney. (A specimen was exhibited.) By Charles 

 W. Peach, Esq., Wick. 



In these days of photography, lithography, nature printing, 

 photo-lithography, &c. &c, we feel almost inclined to ask, — 

 What next % I therefore beg to lay before the Society the 

 most interesting fact of true nature printing of sea-weeds, 

 which I fell in with in August 1856, immediately below the 

 ruins of the ancient Episcopal palace of Stromness. 



I was examining on the sea-shore the charnel-house in which 

 lie the skeletons of the ancient denizens of the waters of the 

 Lower Old Red Sandstone period ; my attention was engrossed 

 by their numbers, — the variety and the beauty of the sculpture 

 of the black shining wings and dermal covering of the 

 Pterichthys ; the " berry-upon bone " cuirass of the Coccos_ 

 teus ; the fluted spears and delicately fretted mail of the 

 Diplacanthus ; and the burnished and spotted scales of the 



