Notices respecting New Booh. 143 



In vol. i. p. 173, Colonel Mudge gives 91^ for its height, 

 which differs only by half a foot. 



But at page 266 it is stated to be 1 1 8 feet, being 27 feet 

 above the proper height. Again, in vol. iii. p. 307, it is stated 

 to be 132 feet, or 41 £ too high. 



The grounds of my assumption of 402 feet being the heio-ht 

 of the Grand Junction Canal summit, near Tring, are these: 

 The range of tide, from low water spring tides at sea, to 

 high water near Somerset House, I presume to estimate 1 9£ 

 feet ; from this point to the Regent's Canal summit will be 

 found 83£ feet ; from this level I apply the revised section of 

 the Grand Junction Canal = 299^ to the summit near Tring, 

 making together 402 feet as above. 



From these levels it will appear, that Wendover Station 

 above Brickhill is 861 — 57l£ = 289£. Colonel Mudge's 

 numbers give . . 905 — 683 =222 



67i error 

 Arbury above Brickhill 740 J — 571^ = 69 

 Colonel Mudge . . 804 —683 =121 



Error 52 

 Wendover above Arbury 861 — 740| = 120^ 

 Colonel Mudge . . 905 — 804 =101 



Error 19^ 

 Some fresh observations with the zenith sector made at 

 Blenheim, and Sutton, would offer a fine check to the latitude 

 of Arbury ; and also at Highbeach, and Botley Hill, a check 

 to the latitude of Greenwich would be readily obtained. 



Leighton, Bedfordshire, February 1822. B. Bevan. 



XXIV. Notices respecting New Booh. 



T 



HE Transactions of the Horticultural Society, vol. v. 

 Part IV., have just appeared. The following are the 

 contents: — 



On the Cultivation of the Yellow Rose, and of the tender 

 Chinese Roses, by budding on the Musk Cluster Rose. By 

 John Williams, Esq. — On the Cultivation of the Arachis 

 hypogeea. By Mr. John Newman, Gardener to the Hon. 

 Robert Fulke Greville. — On the Treatment of the Banyan 

 Tree (Ficus Indica) in the Conservatory. By Peter Rainier, 

 Esq. Captain R.N. — Further Notes on the Utility of the 

 Grafting Wax, described in a former Paper. By David 

 Powel, Esq. — Some Remarks on the supposed Influence of 



the 



