696 NATURAL SCIENCE. Nov., 



The illustration is a ground plan of the inner-bailey, occupying the 

 mound of the Castle Hill. This plateau is 350 ft. long from north to 

 south, and 340 ft. wide from east to west. A promenade of varying 

 width, from 20 to 30 ft. broad, surrounds the exterior of the enclosure, 

 bordered by palisades and overlooking the Castle garden, which, as 

 already stated, occupies the inner moat around the Castle. The 

 keep itself stands near the south-west angle of the hill, having two of 

 its sides exposed, but its north and east faces are enclosed within 

 the precincts of the inner bailey courtyard. The original castellated 

 granite wall of the prison has been preserved and is 20 ft. in height, 

 and (save at the south-west angle, where the keep projects, forming a 

 right angle) is roughly octagonal in form, as seen in the ground plan. 

 The area thus enclosed is about one and a-half acres in extent. 



"On entering the castle through the old prison gateway," says 

 Mr. Boardman,^ "we find ourselves in a vestibule, 28 ft. by 17 ft., 

 having a handsome stone staircase six feet wide, by which entrance 

 is gained to the keep on the left hand, and an archway leading to the 

 enclosed gardens in the centre. The entrance-hall and all the 

 galleries of the museum have been laid with handsome tessellated 

 pavements, similar to that of the Great Hall of the British Natural 

 History Museum in Cromwell Road." 



Turning to the right is a corridor, 10 ft. wide and about 50 ft. 

 long, on the right hand side of which is the Curator's room and the 

 Committee room and library (Room G on plan). Over this latter 

 apartment has been constructed a muniment room, with floor and 

 roof formed of iron girders and concrete, so as to render it fire-proof, 

 to be devoted to the preservation of all the deeds and charters 

 belonging to the Corporation. 



The first pavilion is entered at the end of the corridor. It 

 measures 54 ft. long by 27 ft. wide (Room F on plan). This gallery 

 is connected by a corridor 14 ft. wide by 40 ft. long, with a second 

 pavilion 68 ft. long by 27 ft. wide and 25 ft. high (Room E on plan). 

 A similar corridor communicates with a third pavilion (D on plan) 

 of corresponding dimensions to the first (Room F). At the end of the 

 second large room (Room E) is the Curator's work-room, constructed 

 with a gallery round it, with large north lights, and fitted with wall- 

 cases and cabinets to contain the large collection of unmounted bird 

 skins. The fourth pavilion (Room C on plan), of similar dimensions 

 to Room E, it is proposed to devote to a picture gallery. The fifth 

 and sixth pavilions (Rooms B and A on plan) correspond in propor- 

 tions with Rooms D and E, already noticed, and a small connecting 

 room unites this fine series of galleries with the keep, which we enter 

 by a doorway formed in the north wall. 



The interior of the keep measures 80 ft. by 76 ft., and a gallery 

 has been constructed around it, on a level with the principal (ancient) 

 entrance from Bigod's Tower, about 12 ft. in width. Columns and 



•' See Report nf his lecture, Norfolk Chronicle, November 29, 1890. 



