180 



Scientific Intelligence. 



4. The Copper Deposits of Missouri; by H. F. Bain and 

 E. O. Ulrich. IT. S. Geol. Surv., Bull. No. 267, 1905, pp. 52.— 

 " Copper is found only in the southern part of Missouri, within 

 the region broadly known as the Ozark uplift." The annual out- 

 put has thus far been small ; for 1903 it was 830,210. 



The stratigraphic sequence and the extensive sjmonymy of the 

 Ozark rocks are worked out in detail by Ulrich, and as it will be 

 of service throughout the Mississippi Valley, his table of forma- 

 tions is presented herewith : 



System. 



Series. 



Formation. 



Thickness. 







Joachim limestone .. 



0-150 



, 5 

 '% 



"> 

 o 



6 



'3 

 '> 



o 



6 



C ' 

 03 



C 

 c3 



fcfi 



o 



OS 



o3 

 GO 



an True Sar- Potosi or 



atogan Yellville group 



St. Peter (" Crystal City") sandstone 



Jefferson City limestone _ 



Roubidoux formation 



Gasconade limestone 



Elvins formation _ 



0-200 



50-250 

 70-225 + 

 450-650 



0-120 



.2- 



a 



03 



Q 



Bonneterre limestone .. 







rC J 



n 1 



< I 



La Motte sandstone . 



0-300 



Archean granites and porphyries 



c. s. 

 5. Developmental Stages in the Lagenidae / by Joseph A. 

 Cushman. Amer. Nat., Aug., 1905, pp. 537-553. — This readable 

 short paper for the first time applies Hyatt's Principles of devel- 

 opment to the unicellular animals. The growth stages in com- 

 pound forms are easily determined, and phylogenies of consid- 

 erable importance are established. The simplest form in the 

 family is Lagena, and the Dagena-st&ge is pi'esent in JVodo- 

 saria, Marginiolina, Dimorphina, Polymorp>hina, and Cristel- 

 laria. Old age characters, uncoiling, and the development of 

 spinose or " wild gi-owths " are also clearly shown. The paper 

 gives a remarkably clear exposition of how Hyatt's Principles 

 may be applied to the .Foraminif era. c. s. 



