
PROCEEDINGS OF THE SOCIETY, 147 
displays well-marked whorls of three or four papille at regular 
intervals, which give it a nodulose appearance. The male 
elements are found in the region of the swellings. i transverse 
section shows a remarkably highly developed.cellular system for a 
fresh-water alga. On the outside there is a cortical layer, the 
cells of which are richly charged with colouring matter. A layer 
of transparent cells follows, and in the hollow centre there is a 
series of delicate filaments bearing apparatus for fertilisation.” 
Mr. John Renwick exhibited, on behalf of Mr. Thomas Service, 
a fine series of sharks’ fossil teeth, belonging to the genus Lamna, 
from a phosphate deposit in Algeria, about 100 miles inland and 
1,000 feet above sea-level. They appear to belong to Miocene or 
Middle Tertiary Age. Similar teeth were brought up in the 
dredge by the ‘“‘ Challenger” expedition from the bed of the 
Atlantic at a depth of two miles. In the “Challenger” specimens 
the cusps were decayed away, but the teeth from Algeria are 
perfect. Mr. John Young, LL.D., made some interesting remarks 
regarding this exhibit. 
Adoxa Moschatellina, Linn., and WNeottia Nidus-avis, Rich., 
from Carrick Hill, Maybole Parish, and Hyoscyamus niger, Linn., 
from the Heads of Ayr, in the same parish, were sent for 
exhibition by Mr. Thomas Wilson, Ayr. None of these plants is 
recorded in Mr. John Smith’s Botany of Ayrshire for this parish. 
Mr, John Paterson read the following papers :—(1) ‘On the 
Distribution of the Chiff-Chaff (Phylloscopus rufus (Bechst.) ) in 
the Clyde Area” (see page 48); (2) “Notes on the Summer 
Bird-life of Ailsa Craig.” 
A paper entitled ‘“ Meteorological Notes and Remarks upon 
the Weather during the Year 1896, with its General Effects upon 
Vegetation,” by Mr. James Whitton, Superintendent of Parks, 
was held as read (see page 105). 
3rp Aveust, 1897. 
Mr. Robert Dunlop in the chair. 
The following gentlemen were elected as Ordinary Members of 
the Society :—Messrs. Michael Cuthbertson, F.R.H.S., Sunny 
Park Nurseries, Rothesay; and John Mackie, Crofthead, 
Neilston. 
