Mk. Fekgusox on a Marine Deposit containinr/ Shellg. Hi) 



ing peats on the street. Under the peat, a depth of four feet of alternating 

 layers, from two to four inches in thickness, of fine and coarse sand were ex- 

 posed. This deposit was not perforated, and its depth is therefore unascer- 

 tained. It contained shells, none of which, however, with one exception, 

 were preserved. Several were obtained, but no value being attached to 

 them by the workmen, they were broken and thrown aside. The one in 

 question owed its preservation to its having attracted the attention of one of 

 the men from the brilliant appearance of a portion of its pearly structure, 

 apparent through the broken epidermis. The party who preserved it, Mr. 

 James Peters, happened to be a patient of my friend Dr. Lorrain, who has 

 favoured me with this narrative, and it struck him that this pretty shell 

 would be an acquisition to the Doctor's Conchological Collection. It 

 accordingly reached him, and this led to the examination and recording of 

 this interesting discovery. The shell is Trochus zeziphaniis, a common 

 enough species on our shores. Mr. Peters informs me, that the workman 

 who dug up the shells, observed five or six in one spadeful of the sand, 

 but paying no attention to them, they were thrown out and destroyed. 



An old building next the new land of houses adjoining the Arcade, is 

 to be taken down and rebuilt in spring. This bouse stands on the origi- 

 nal soil without any sunk-story. As the new houses will have such 

 sunk-stories, we may look forward to obtaining more evidence on this 

 subject when the foundations for the new houses come to be dug out. 



Mr. Chambers' description of the Glasgow terraces, is as follows : — 



" At Glasgow the river has ceased to be an estuary, though affected 

 by the tides for three miles higher, namely, to Rutherglen. Around, 

 and also within the city, I have found several of the ancient beaches. In 

 Glasgow Green the same two haughs which occupy so mucli of the Levcn 

 Vale are distinctly seen, one of them about 11 and the other 26 feet 

 above the ordinary level of the sea. The Trongate and adjacent districts 

 of the city, are built upon the second of these plateaux, which also 

 extends over a large space on the opposite side of the river ; at Partick, 

 to the west of the city, this beach is also clearly juarkcd, being there 

 about 26 feet high. 



" The Ascog beach likewise appears in or near Glasgow, but does not 

 pass through it so uninterruptedly. Ascending from Partick towards the 

 Observatory, we find it at Dowanhill, and also on the east side of the 

 Kelvin Valley. If we make a cross movement from the river bank at 

 the Broomielaw, the following beaches will be found: — First, the street 

 of Broomielaw, a piece of ancient haugh 10 feet above high water mark ; 

 second, another flat at Anderston-Street, at about 30 feet; third, a 

 terrace sloping up to the skirts of Garncthill, somewhat irregular, but 

 exhibiting some entire pieces, (for example, the site of Free St. Matthew's 

 Church,) and attaining an extreme height of somewhat more than 80 

 feet. A similar cross movement in the eastern suburbs, starting at the 

 Green, and passing up to the lodge at the House of Refuge, gives a pre- 

 cise repetition of these gradations. Tiie 11 ill-Street Factory is thus 



