38 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I47 



TREE-RING DATES FROM PUEBLO BONITO— Concluded 



„. , , Masonry txpe 

 Field ^ 



No. Room Location 12 3 



99 — Fallen tree, southeast corner, 



West Court (A.D. 983) 



104 317 Ceiling pole 828 



105 " " " 859 



106 325 Post, southeast corner 919 



107 320 Beam [3-4" E-W beam] 919 



108 " " " " 919 



109 " " " " 919 



110 — Ceiling pole, narrow space 



west of R. 320B com- 



placent 



113 325 Post, northeast corner 919 



114 323 Beam 935 



115 " " 935 



116 " Post under beam No. 114 919 



117 " " " " " 115 919 



118 327 Beam 



120 327 Beam from R. 325 



122 KivaX " " west, 5" dia. 1034 



123 " " _ 



130 261 " [prob. from R. 267] 1070(?) 



145 314 " above fill in OB room com- 



placent 



As will be noted from the foregoing, the National Geographic 

 Society collected at Pueblo Bonito samples of 97 constructional tim- 

 bers in 33 rooms and 9 kivas. Of this total, however, 38 (40 per- 

 cent) were not datable, either because the growth rings were too uni- 

 form ("complacent" in the Douglass terminology) or because the 

 wood — juniper, piny on, or cotton wood — is not yet readable. Of the 

 remaining 59 specimens, 13 came from Old Bonitian houses and, 

 except one reused 1047 beam, their cutting dates range from A.D. 

 828 to 935. Seven of these dates are identical, A.D. 919. 



Seventeen specimens felled between 1011 and 1120, including a 

 second obviously reused example dated 920, were collected in third- 

 type rooms, and 28 other specimens, all cut between 1035 and 1126. 

 came from fourth-type structures. Room 305 is our only dwelling of 

 second-type masonry yielding a datable timber, a single specimen 

 felled in A.D. 1033. 



Thus, excepting the two clearly salvaged, the Pueblo Bonito Expe- 

 dition's 59 datable timbers fall into two groups, one bracketing the 



