No. 8.] BIBLIOGRAPHY OF CONNECTICUT GEOLOGY. I3 



obtained from a single vein of albitic granite at Branchville. The fol- 

 lowing is a list of the minerals found: Albite, quartz, muscovite, micro- 

 cline, damourite, spodumene (and its alteration products), cymatolite, 

 apatite, microlite, columbite, garnet, tourmaline, staurolite, eosphorite, 

 dickinsonite, triploidite, rhodochrosite, reddingite, amblygonite (hebron- 

 ite), vivianite, lithiophilite, uraninite, fairfieldite, fillowite, chabazite, 

 killinite, natrophilite, hureaulite. 



12. Burr, H. T. 



Physical geography of the Connecticut lowland. 

 Connecticut Sch. Doc, No. 251, 1-17, 8 figs., 1904. 



The Triassic area of Connecticut is made up of sandstones deposited 

 in a narrow estuary, lavas, and intrusive rocks. The present topography 

 is the result of faulting and of the establishment of streams on an 

 ancient peneplain. 



13. Chapin, A. B. 



Junction of trap and sandstone, Wallingford, Connecti- 

 cut. 



Am. Jour. Sci., (i) xxvii, 104-112, 8 figs., 1835. 



Maps of seven trap dikes. Detailed description of branching dike, 

 contact phenomena, included sandstone fragments, etc. 



(An unusually clear and complete description of effects of contact 

 metamorphism; remarkable for this early date. — Ed.) 



14. Chapin, J. H. 



The Hanging Hills. 



Meriden Sci. Assoc, Trans., ii, 23-28, 1886. 



Brief description of the occurrence of the trap ridges around Meriden. 

 Brief review of two theories for the origin of the trap ridges: i. Each 

 ridge was the result of eruption through a single vent; 2. (Davis) The 

 traps were contemporaneous flows, since reduplicated by strike faulting. 

 The author inclines more to No. 1. 



15. Chapin, J. H. 



The trap ridges at Meriden. 



Meriden Sci. Assoc, Trans., iii, 35-36, 1888. 



Brief mention of " ash bed " in anterior sheet of Lamentation Moun- 

 tain. 



16. Chapin, J. H. 



The topographic survey of Connecticut. 

 Meriden Sci. Assoc, Trans., iv, 51-57, 1890. 



A description of the method used in making the topographic map of 

 1893- 



17. Cochrane, H. E. 



Rocks and minerals ©f Connecticut. 

 Connecticut Sch. Doc, No. 104, 1-26, 1895. 



List of minerals and rocks found occurring in the towns of the 

 state, arranged according to Sheijard's .Minerals and Dana's Mineralogy. 



