6 HiCKLING, British Permian Footprints. 



identical with that shown in Fig. 13, except in the digits 

 alone being shown. This fact raises a suspicion that these 

 forms may really be chelichnoid, in spite of the apparent 

 difference. These prints may be referred to as x2. 



Several other types occur at Penrith, too imperfect 

 for description. 



The Dumfriesshire Footprints. 



A considerable literature exists in reference to these 

 impressions, but practically the only figures are those in 

 Sir Wm. Jardine's " Ichnology of Annandale," a very 

 inaccessible folio. 



The footprints have been found in a number of 

 quarries extending over a considerable tract. The 

 following is a list: Corncockle Muir, Applegarth; Templand 

 quarries, Lochmaben ; Craigs Quarry, Dumfries ; Green 

 Mill Quarry, Caerlaverock ; Locherbriggs (Harkness, '51). 



The rocks in which the impressions occur, have been 

 transferred from Trias to Permian, and back again many 

 times. Until recently they were mapped by the Survey 

 as Permian, but lately they have been returned to the 

 Trias. 1 trust the evidence now considered, will be 

 allowed to settle them definitely in the Permian. 



Chelichnoid forms. — In 1828, the Rev. Dr. Duncan 

 described the first fossil footprints from Corncockle Muir 

 before the Royal Society of Edinburgh (Duncan, '28). 



The one track figured by Duncan was again figured 

 by Buckland from a cast and referred by him to a tortoise 

 (Buckland, '36, p. 261), and was named Testndo Duncani 

 by Owen (Owen, '41). Jardine gave the name Cheliclmus 

 Duncani (Jard., '50). 



This track is here figured from a cast in the Manchester 

 Museum, which I believe to be a copy of that figured by 



