NATURAL HISTORY SOCIETY OF GLASGOW. IX 



Mr. Josei^h Sommerville exhibited specimens of Blatta mneri- 

 aanay an American cockroach which has become naturahzed in 

 this country. The specimens were found concealed in crevices 

 in a mahogany log. 



The Chairman (Mr. Cameron) exhibited specimens of Nematiis 

 oblongus, Cam., from the Kilpatrick Hills, and remarked that 

 the species, which is new to the Scottish Fauna, is of very rare 

 occurrence in England. He also exhibited specimens of a Leaf- 

 fungus, Rcestelia cornuta, Tul., and stated that at Thornhill, 

 Dumfriesshire, the fungus is very common on the leaves of 

 Pyrus Aucuparia. In its alternate state, formerly described as 

 Gyninosporanghun junipeH, it is also abundant on the Juniper. 

 Dr. T. B. Grierson, of Thornhill, had informed him that at 

 present the leaves of the Rowan-trees in his garden are covered 

 with the fungus, and that the form which occurs on the 

 Juniper is destructive to the branches on which it grows. Mr. 

 •Cameron also exhibited gall-like excrescences found on the 

 roots of the Ivy and Alder, upon which he made some 

 remarks. 



Mr. William Goodwin described the processes in Micro-photo- 

 :graphy, and exhibited the entire apparatus necessary, which 

 was of a simple and inexpensive description. As a practical 

 illustration of the method, he afterwards photographed an object 

 which he had placed under the microscope. 



