Oorreotioii. 



!>y a mistake in printiiiii^ s 

 on JNIissouri Minerals" by Eiasi 

 position. They should be as fo 



)nu' of the fin'tires used to i 

 luis Ilaworlli. were inserte< 

 lows: 



usti-ate "Xotes 

 in a hoi'izontal 



Fig. 1. 



Pseudo— tetragonal symmetry, ap- 

 [tareutly with unites prism x \\ and 

 pyramid of second order, Px . 



Fig. 2. 

 Pseudo- hexagonal symmetry, ap- 

 l-arently with prismatic, cc P, and 

 rhombohedral. I?, faces. 



Fig. 3. 



Pseudo— monoclinic symmetry.ap- 



parently with the two lateral pina- 



coidal faces, ^ F^ , aiid ^ p\ . and 



both plus and minus pyramids, +P. 



Scaleiujhedron of calcite with al- 

 ternate polar edges beveled and 

 modilied, as in text. 



