142 HEKTFOEDSniRE ORDNAJfCE BEXCH MARKS. 



I. — BlEJIIXGHAM TO LoNDON, 



The line of IcTclling from Birmingham to London enters Hert- 

 fordshire from Bedfordshire at about a mile from Dunstable, and 

 leaves it for Middlesex at about the same distance beyond Bamct. 

 Between South Mimms and Barnet the line is in Middlesex, and to 

 preserve the continuity of the levelling I have included this 

 portion. 



Dunstable to St. Albans. Altitudes 



in Feet. 



Mark on comer of Mr. Osborne's house, boot and shoe 

 maker, Dunstable ; 3-59 ft. above centre of road *. . . . 483*458 



Mark on the 32nd milestone fi'om London and 12th 

 from St. Albans 538*590 



Mark on south-west comer of house, nearly opposite 

 Dunstable Toll-house; 4*29 ft above centre of road . . 558'334 



Mark on brick over pipe at east side of road; 0*70 ft. 

 below centre of road 552*535 



Mark on the 31st milestone from London and 1 1th from 

 St. Albans; 2*64 ft. above centre of road 527*250 



Mark on north-east comer of house, at west side of 

 road ; 2*83 ft. above centre of road 500-994 



Mark on the 30th milestone from London and 3rd from 

 Dunstable; 4*83 ft. above centre of road 478*152 



Mark on north-west corner of house, opposite the Pack 

 Horse Inn; 3*02 ft. above centre of road 448*997 



Mark on south-west corner of Mr. Stanley's house, at 

 east side of road; 2*01ft. above centre of road . . . . 439*971 



Mark on top of the 29th milestone from London ; 

 1*57 ft above centre of road 434'oo6 



Mark on north-west corner of Thomas Powel's public- 

 house, at north end of Market-street Village; 1*97 ft. 

 above centre of road 443*182 



Mark on south-west comer of Mr. Dell's house, at 

 north side of Market-street Village ; 1-82 ft. above surface 422*076 



Mark on corner of house, nearly opposite Pickford-lane, 

 Market-street Village ; 1*26 ft. above centre of road .. 406*851 



Mark on top of the 28th milestone from London and 

 5th from Dunstable ; 2*35 ft. above centre of road. . . . 407*192 



Mark on brick over pipe at east side of road, 3 chains 

 south of cross roads; 0*87 ft. above centre of road. . . . 383*914 



Mark on south corner of Friars Wash public-house ; 

 0*2fi ft. below centre of road 359'389 



]\rark on north-east corner of small house at Friars 

 Wash Toll-house ; 1*28 ft above centre of road .. .. 354*941 



Mark on the 26th milestone from London and 6th from 

 St. Albans; l*50ft. above centre of road 373'957 



Mark on brick over pipe at iron grating, east side of 

 road, opposite gravel pit; 0-23ft. below centre of road. . 413*871 



* 111 Bedt'onlshiro. 



