watching through the porthole was also glad of this space, as it made 

 his position a little more comfortable : it increased the relative height of 

 his seat. Also, after being shut up in the cabin for many hours, the 

 crew were glad to be able to straighten up completely: the total 

 diameter of the cabin was just enough to allow my son to stand up- 

 right. 



All the space above the floor was available for the crew. Like the 

 supports of library shelves, the uprights had holes spaced an inch 

 apart : into these were fixed brackets standing out towards the walls of 

 the cabin and supporting aluminium shelves upon which the different 

 instruments were fixed. By this means the height of the shelves could be 

 varied to suit the differing heights of the apparatus. This whole 

 installation was carried out by the Volta Institute at Trieste, in alu- 

 minium alloys presented by the 'Lavorazione Leghe Leggerre,' Porto 

 Marghera (Venice). 



[ 103 ] 



