APPENDIX A. 



CATALOGUE OF TKANSLUCENT SECTIONS OF KOCKS 



AND FOSSILS. 



List of Translucent Sections of Rocks and Fossils Prepared 

 and Mounted on Glass, in the Laboratory oe the State Mu- 

 seum of Natural History. 



No. Name. Formation. . . Locality. 



1, 2 Cryptozoon „ Saratoga Co., 1ST. Y. 



3, 4 Cnemidium ramulosum Wurtemberg. 



5 Stromatopora, Coralline limestone Schoharie, 1ST. Y. 



6 Serpentine and iron Westchester Co., N. Y. 



7, 8 Tentaculites, Tentaculite limestone Schoharie, N. Y. 



9 Stromatopora, Coralline limestone Schoharie, N. Y. 



10, 11 Stromatopora, Hamilton group Iowa City, la. 



12 Astylospongia, Niagara group Tennessee. 



13 Spirifera 



14 Astylospongia , Niagara group 



15, 16 Stromatopora, Coralline limestone Schoharie, N. Y. 



17, 18 Astylospongia „ Tennessee. 



19 Chsetetes, Trenton limestone 



20 Favosites with crinoid stem, Lower Helderberg 



21 Cnemidium ramulosum Wurtemberg. 



22 Stromatopora, Hamilton group Iowa City. 



23 Astylospongia 



24 Fusulina, Upper Carboniferous ... Missouri river. 



25 Cnemidium Wurtemberg. 



26 Astrseospongia, Niagara group Tennessee. 



27 Astrseospongia, Niagara group Tennessee. 



28 Favosites Niagarensis, Niagara group Lockport, N. Y. 



29 Favosites Forbesi, Niagara group Lockport, N. Y. 



30, 31 Chsetetes, Shaly limestone Schoharie Co., N. Y. 



32 Stromatopora, Gray limestone Clarksville, N. Y. 



33, 34 Sponge, Trenton limestone Wisconsin. 



35 Favosites Forbesi, Niagara group Lockport, N. Y. 



36 Sponge with crinoid stem, Lower Helderberg group. 



37 Stromatopora, Guelph limestone Guelnh, Canada. 



38 Sponge Lower Helderberg 



39, 40 Sponge Trenton limestone 



41 Sponge Lower Helderberg 



42 Stromatopora, Hamilton group Iowa. 



43 Diphyphyllum, Hamilton group 



44 Cnemidium ramulosum Wurtemberg. 



45 Sponge, Lower Helderberg 



46, 47 Sponge, Upper Helderberg , 



48 Stromatopora, Hamilton group Iowa. 



49 Diphyphyllum, Hamilton group 743 



[Sen. Doc. No. 60.] 5 



