724 GREAT SERPENTINE BELT OF NEW SOUTH WALES, Hi. 



Plate xxviii. Photomicrographs. 



Fig.7. — Bastite in schistose serpentine, with chrysotile-veins ; "North of 

 Tamworth" ( x 12) [polarised light]. 



Fig. 8. — Antigorite ccmmencing to form in normal mesh-serpentine [N.T., 

 258]; Bowling Alley Point ( x 22) [polarised light]. 



Fig. 9. — Antigorite completely replacing normal serpentine, and com- 

 mencing to form in bastite [N.T., 383]; Bowling Alley Point ( x .10) 

 [polarised light]. 



Fig.10.— Tremolite-antigorite-chromite rocks[M. B., 319]; Hall's Creek, 15 

 miles south of Bingara( x 12) [polarised light]. 



Fig. 11. — Multiply twinned clinozoisite in saussurite-gabbros [M.B., 181]; 

 3 miles W.S. W. of Gulf Creek ( x 10) [polarised light]. 



Fig.12. — Amphibolite passing into antigorite, showing multiple twinning 

 of the hornblende [M.B., 186]; Paling Yard, Barraba ( x 20) [polar- 

 ised light]. 



Plate xxix. Photomicrographs. 



Fig. 13.— Intrusion of plagioclase-porphyry (left) into spilite (right) [N.T., 



89]; Bowling Alley Point ( x 12). 

 Fig.14.— Vosgesite [M.B., 144]; 6 miles north of Attunga ( x 22). 

 Fig.15.— Camptonite[M.B., 228]; near Crow Mountain ( x 21). 

 Fig.16. — Prehnite and garnet in contact-altered limestone [M.B., 163] ; 



Attunga ( x 11) [polarised light]. 

 Fig. 17.— Radiolarian mudstone [N.T., 410]; Nundle( x 20). 

 Fig. 18. — Radiolarian mudstone with felspathic (tuffaceous ?) bands [M.B., 



71]; Barraba ( x 22). 



CORRIGENDA. 



P.662, line 5— for Plates xxv.-xxvii., read Plates xxvii.-xxix. 



Pp.664, 666, 667, 669, in the references to figs. 1-6— for PI. xxv., read PI. 



xxvii. 

 Pp.673, 674, 675, 681, 689, in the references to figs. 7-11— for PI. xxvi., read 



PI. xxviii. 

 Pp.694, 697, 699, in the references to figs. 13- 15— /or PI. xxvii., read PI. 



xxix. 



