XC PROCEEDINGS OF THE 



Professor Prince exhibited a female Haddock {Morrhua 

 feglefiniis) from the East Coast, measuring two feet in length, 

 with a large melanotic tumour. The tiimour, which projected 

 from the caudal trunk about half-an-inch below the lateral line, 

 had the form of a shoit stout cylinder, measuring 3 inches in 

 height and about 7| inches in circumference. Mixch of the surface 

 was ulcerated and presented a reddish raw appearance, and ex- 

 tensive black patches occurred towards the dorsal side. Around 

 the base of the tumour the scaly integument was raised up, but 

 the silvery appearance ceased at ^ inch to Ih inches from the rim, 

 and the flesh-coloured corium continued to the ulcerated surface. 

 Examination showed that it was seated upon the surface of the 

 caudal muscles and enveloped mainly by the corium, but did not 

 penetrate the muscles of the interspinous bones beneath, though it 

 lay immediately above the first anal fin, which was pushed so far 

 from its normal place as to impart to the caudal trunk a flattened 

 face on the side opposite the tumour. All the neighbouring tissue 

 showed a congested appearance. To the touch the tumour was 

 very hard, and from its position had evidently seriously impeded 

 the movements of the tail, the lower lobe of the caudal fin being 

 seriously abraded and partly worn away by contact with the sea- 

 bottom.* 



Mr. David Robertson, F.L.S., F.G.S., exhibited a young Solen 

 with one of the valves of its shell fractured across the narrow 

 surface from the margin to the hinge. From the dark colour 

 of the outer edges of the fracture, the shell appeared to have 

 been broken for a considerable time, and the asperity of the 

 inner edges had been removed by a thick deposit of nacreous 

 matter. 



Mr. Peter Ewing exhibited a hybrid variety of Gloxinia, the 

 leaves and flowers of which were fasciated in a remarkable manner. 



Mr. George Russell showed a fine specimen of Dendrohixnn 

 nobile, Lindl., var. Cooksoni, and stated that in this form the 

 upper segments of the perianth are more fully developed than 

 in the type, and bear purple markings similar to those of the 

 lower segment or lip. 



Mr. D. A. Boyd exhibited specimens of Cceovia alliorum. 

 Link, a rare parasitic fungixs, which has occurred, during two 

 successive summers, on leaves of Leek {Allitini Porrum) at 

 Searaill, Ayrshire. 



Mr. C. O. Sonntag exhibited a fine series of Marine Algse 

 gathered on the coast of the English Channel, with microscopic 

 sections illustrating the characteristics of the various genera. 



Professor Thomas King also showed numerous specimens of 

 Marine Algae mounted for microscopic examination, and describ- 

 ed the method of cutting and preparing sections of these plants. 



* See Tenth A nn iicil Report of the Fishery Board Jor Scotland (1892), Part III., 

 p. 323; pi. xvii., fig. 1-3. 



