20 PALENQUE. 



corridors, find there is a smaller gable-headed opening like a window, through the 

 northern part of the main wall. A square-topped doorway leads out of the southern 

 end of the eastern corridor. 



There were several secondary transverse walls with doorways through them in the 

 western corridor which have now disappeared. In the eastern corridor there are four 

 transverse walls, one of them extends to the top of the vault of the roof, the other 

 three reach to the spring of the vault only ; two of these latter are pierced by doorways, 

 and the third (that to the north) separates the eastern corridor from the southern 

 corridor of the northern house. The structure of these secondary walls is very rough 

 and the plaster is coarse and brown in colour. 



There are T-shaped holes both in the main and eastern walls, which open on to the 

 eastern corridor only ; some of these holes have moulded borders. 



There are passages pierced through the thickness of the roof above the main wall 

 similar to those in House A, and in a like manner they have been blocked up by a thin 

 partition on the western side. There are also shallow recesses of the same shape 

 facing these passages both on the east and west sides of the vault. 



In the southernmost of these passages through the main wall a sort of stone ladder 

 leads to a horizontal shaft ; this shaft opens on the north side of the vault of the 

 doorway which passes through the main wall. From the horizontal shaft rises a 

 vertical shaft which apparently led to the roof but is now closed by a large stone. 



A double row of wooden struts spanned the two corridors. 



The house which prolongs the line of double corridors along the west side of the 

 Palace Mound, to the south of House D, is a later addition and had a lower roof; only 

 parts of the main and east walls now remain standing. 



The Tower. (Plates XXVI., XXVIL, and XXXVIII., XXXIX.) 



The Tower stands at the south end of the western court and of House C. It is 

 built in five superimposed compartments, namely : the solid foundation (No. 1, Plate 

 XXXIX.), against which some small chambers or corridors have been built on the 

 north and west sides, and perhaps also on the east side, which is now covered by a 

 heap of fallen stones and rubbish ; the first floor (No. 2) ; an intermediate floor 

 (No. 3) with passages and minute cells ; the second floor (No. 4) ; and the top floor 

 (No. 5), of which the roof has fallen in. 



On the first, second, and top floors there are wide openings or doorways through 

 each of the four walls. These were formerly capped by wooden lintels which have 



