A PRAIRIE-"DOG" BURROW 



207 



jha/ttd, entranca'to burrow 



ab-cvd 15 



. 

 th 



- 



fectut Unc/th. 



V . Unused I wu'l offwruontalnassaqe 



fMid with tarVi etc ( 4- fu-tlong) * 

 G . Nidielca-cft uiouqk-for one prairie dag. 



\\.Ntttof qraSS(lti,nch, indiamitir by 3 



ches in, height) 

 d.Absorbeirtmattcr tarrying b 



d ' carbon. 

 \\.Positipnof ft-azrie.do&s cis found after 



use of bisu-lfi/iide of -carbon/. 

 LJe/tfk of horizontal ].ass(tq& 



" 



in- 



PRAIRIE-" DOG" BURROW. 

 From Dr. C. Hart Merriam, "Yearbook," Department of Agriculture, for 1901. 



