134 Field Notes. 



•of a pebble of rhomb -porphyry. These objections may be met, 

 as to ihe first by assuming the river course passed to the west of 

 the Scottish trough, or alternatively that the trough was 

 filled by earlier sediments. In the absence of any precise 

 correlation of the Scotch and Yorkshire beds, an opinion can 

 hardly be formed. As to the second, whilst it is doubtless 

 true that only in Scandinavia in the Northern Hemisphere 

 have rocks of rhomb-porphyric type been found, yet this 

 Northland must have evidently been of such large dimensions, 

 that rhomb-porphyritic areas may easily have existed further 

 west. 



-: o :- 



FIELD NOTES. 



Large Grass Snakes at Harrogate and Ripon. — 



During February a grass snake, measuring three feet eight 

 inches, was dug up on an allotment at Harrogate, and in the 

 same month three shared the same fate upon an allotment 

 at Ripon. These last measured four feet two inches, three 

 feet four inches and one foot six inches. The ones measuring 

 four feet two inches and three feet eight inches are records 

 for this district. — R. Fortune. 



Bottle -nosed Dolphin in Norfolk. — Mr. John E. Auden 

 informs me that in February he found a male Bottle-nosed 

 Dolphin {Titrsiops tufsio) stranded alive on Blakeney Point, 

 Norfolk. It measured nine feet in a straight line from nose 

 to tail. He has the skull in his collection of mammals. In 

 Carnarvon Bay, on the west coast, Mr. G. H. Caton Haigh tells 

 me the species is common. A herd of them came up the Traeth 

 Mawr on i8th August, 1919, and a young one, ten feet long, 

 was stranded at Borth. He also informs me that a Dolphin 

 {Dolphinus del phis) — -a much rarer species in the west— was 

 washed ashore dead at Harlech, on 22nd August, 1917 ; it 

 measured 6 feet i inch in length. — H. E. Forrest, Shrewsbury. 



Rose -Coloured Starlings in Holderness — On January 



20th, two Rose-coloured Starlings {Pastor roseus) were 

 observed at Roos in Holderness, in company with a flock of 

 Starlings {Slurnus vulgaris). Messrs. B. G. Jalland and H. 

 Ringrose were driving on the high road, when their attention 

 was drawn by the groom to two unusual birds perched in a 

 bush on the roadside. The birds permitted a close approach, 

 and were identified with certainty. The size was about the 

 same as a Starling, with rose-coloured bodies, the one more 

 brightly coloured than the other. No doubt they had come 

 over in company with a flock of migratory Starlings, as a 

 similar occurrence has been reported fiom tin- South of England 

 this winter. — E. W. Wade. 



