Xll 



PUBLICATIONS 



copies of their papers at a slight advance on cost of paper and presswork ; but such 

 separates are bibliographically distinct from the brochures issued by the Society. 

 The following separates of parts of volume 20 have been issued : 



Editions uniform with the Brochures of the Society 



Pages 1-132, 





200 copies. 



February 



12, 1909. 



" 133-152, plates 



1-5; 



130 



" 



March 



18, 1909. 



" 153-170, 





300 



1 1 



April 



3, 1909. 



" 171-196, 





80 



< i 



May 



5, 1909. 



4 ' 197-222, 





100 



( i 



June 



5, 1909. 



" 223-264, " 



6-9; 



80 



it 



July 



15, 1909. 



" 265-332, " 



10-15 ; 



130 



it 



a 



28, 1909. 



" 333-340, 





30 



a 



September 



15, 1909. 



" 341-356, " 



16-27 ; 



130 



it 



October 



11, 1909. 



" 357-368, " 



28-30 ; 



30 



it 



November 



10, 1909. 



" 369-398, " 



31-32; 



60 



it 



December 



21, 1909. 



" 399-408, " 



33-37 ; 



230 



n 



it 



24, 1909. 



" 409-426, " 



38-45; 



230 



t i 



a 



31, 1909. 



" 427-606, " 



46-101 ; 



480 



<< 



February 



5, 1910. 







Special Editions * 





Pages 609-615, f 





30 copies. 



February 



5, 1910. 



" 617-618, plate 



102; 



30 



u 



i i 



5, 1910. 



" 618-619, " 



103; 



30 



<c 



a 



5, 1910. 



Page 620, 





30 



(< 



ti 



5, 1910. 



Pages 621-624, " 



104; 



50 



< i 



tt 



5, 1910. 



" 625-632, plates 



105-107 ; 



200 



u 



" 



5, 1910. 



" 632-634, 





30 



it 



a 



5, 1910. 



" 635-637, 





30 



a 



a 



5, 1910. 



Page 638, 





30 



ii 



ti 



5, 1910. 



Pages 638-639, 





30 



a 



a 



5, 1910. 



Page 639, 





30 



a 



a 



5, 1910. 



Pages 640-645, plates 



108-110 ; 



30 



t i 



1 1 



5, 1910. 



" 645-646, 





30 



<< 



11 



5, 1910. 



" 646-654, plate 



ill; 



330 



( t 



a 



5, 1910. 



" 655-659, 





80 



«< 



" 



5, 1910. 



" 659-660, 





30 



it 



11 



5, 1910. 



" 661-667, 





30 



a 



it 



5, 1910. 



Page 668, 





30 



it 



ti 



5, 1910. 



Pages 668-670, 





30 



< < 



a 



5, 1910. 



Page 670, 





30 



" 



" 



5, 1910. 



671, 





30 



< t 



" 



5, 1910. 



Pages 671-672, 





30 



(t 



<( 



5, 1910. 



Page 672, 





30 



11 



1 1 



5, 1910. 



Pages 673-678, 





80 



" 



" 



5, 1910. 



♦Bearing the imprint [From Bull. Geol. Soe. Am., Vol. 20, 

 f Fractional pages are sometimes included. 



