Itf there ar li   e wlfles doer r    e  of high quality irp- 
 
tions (food cycles) presmbly always occurre there. Rin-a        yis 
 
might discos~e their history. Naturally only plants higher than the 
 
plinsoll line would survive to recori the story    Ag-classes in brewse 
 
reprodcion, might also reeerd the sto.. 
 
     D preset -a.e studies and range policies take acount of brows. 
 
reprodutioa as well as browse prution?   O  the Xbab they cearly 4o 
 
not. The policy to to increase the herd becauso the surviving~ brows 
 
skoft woevesry. The brow * killed during the irruption, but not yet 
 
roplaeel b reproctio, bas been forgtten. 
 
ftr*Ohtive bUtt. and Sex Patios.  On the Kaibab, the faw cro rose 
 
,with veyromwing.  Is this true of other iuptions? Is this tied 
 
in with the possible         t of mtitiomn. 'valvoe dusia m browstl 
 
     Is the rpted inowtse in famle fans         n overbwomsed Pennsylvaia

 
1age asod by the oveabrotweia, or by some other fatr? 
 
I. ts ver brief sketch shoews that the prpsed svey                 t 
 
delve in history as ell as appraise the present.   It show  that o 
 
ipertant resesr-keo are ripe for action now; others will take for 
 
later. The survey then. should servo as liaison between (aMd advisor of)

 
field  gnies a    istitutions. This, of course, does not iMply 
 
afnistwative authority. It also shw       that the field worker    t have

 
espetewe in and sypat h with the entire pmt of bioelgiaAl oensem- 
 
tion activities, ffm pure ooiOa on the one hand to practical mw 
 
agmeuwnt on the other. 
 
r          H   t    s  . 3we forage is long-lived  Palatable browse 
 
iimbtedj aemumLtel in hug     reserves en r     kept nearly doorless