'I'm-: I'l'RkAR AND 'IWN'LOR CLACIl'lRS 
distiiui |\nrallcl <^lacicrs draining- the \cc plaU'au. As 
one nuirclu's up llic l''crrar (ilacicr and notes its t rcvasscs 
antl ice I alls, one wonders what the roek lloor is reall\' 
like — under the iee rivei". |nst 5 niiles lo the north is 
anotlier glacier vvhicli liirnishes (he answer to t his (jiiestion, 
lor the 'ra)lor (ilacier now stops shoi I 25 miles lioni (he 
sea, antl in Dry Valley we see liow all tlu- other valleys 
will ap|H-ar when (he ice age shall pass away Iroin 
Antarctica. 
Starting from New I larhonr at I he nioul h ol I ^ry 
Valley, the latter presents a tvjMcal catenary cross-section. 
A splendid pair of walls with the characteristic slope of 
33'* tlelines the glacier trough. There is no large terminal 
nu)raine near the sea, which seems to tlenote a lairly 
uni form and |H'rha|is rapid ret rocession ol (he glaciei'. 
About 6 nules from the coast a narrow dehle apjiears (tn 
the nortli side, hut (he rounded valley lloor rises gradually 
to 2000 feel over the greater part of the (rough. West 
of this point there is a sudden drop from the Nusshaum 
Bar (or Ricgel) into the next ' bowl ' of the valley. This 
is filled with moraine material (o the deplh ol seveial 
hundred feet, for the drainagx: ol the ' bowl ' is ^iw/iy 
from the sea to the salty waters of hake Honney. The 
delile j^reviously ment ioned is about \ ^00 leet deep, 
and woukl seem to be a water-cut goige denoting an 
inter-glacial period. 
Lake Bonney is about 3 miles long and is separat<-d 
into two portions by a granite bar 500 leet: high. This 
also is traversed by a nairow gorge on the northern side 
of the trough and is a smaller edition of the Nir^.sbauin, 
