380 REPORT ON NATIONAL MUSEUM, 1886. 



whfli exposed to the weatlier. The Cape Girardeau stone is repre- 

 sented as of a variety of colors — purple, yellow, red, pink, gray, and 

 greenish all being enumerated; the supply is unlimited. None of these 

 marbles are at i>resent systematically worked, owing to lack of capital 

 and distance fi^om market. Professor Broadhead further states that few 

 of the marble beds of southeastern Missouri are thick enough to be eco- 

 nomically worked, as there would be too large a portion of waste ma- 

 terial. 



No pure white crystalline marbles are as yet known to occur within 

 the State limits. Other stones capable of receiving a polish and suit- 

 able for marble are stated to occur in the counties of Saint Louis, Saint 

 Charles, Warren, Montgomery, Ealls, Calloway, Lincoln, Cooper, Pet- 

 tis, Cass, Jackson, Livingston, and Clay. 



Montana Territory. — This Territory as yet quarries no marble or other 

 stone of importance. There were exhibited, however, at the Centennial, 

 in Philadelphia, 187G, and since then in the National Museum at Wash- 

 ington, two samples from Lewis and Clarke County that are worthy of 

 note, since they form the nearest approach to the imported Italian black 

 and gold marble from the Spezzia quarries of any at i)resent found in 

 America. The rock is very close and compact, of a dark blue-gray color, 

 and traversed by irregular wavy bands of varying width of a dull 

 chrome-yellow color. So far as observed the stone is far inferior in 

 point of beauty to its Italian prototype, and apparently would prove 

 more difficult to work. 



New YorJc. — The belts of Archaean dolomite which lie to the north of 

 New York City and cross the State in a northeasterly direction furnish 

 a very fair quality of white and gray marbles that have at various 

 times been quite extensively utilized. At present the quarries at Tuck- 

 ahoe and Pleasantville, in Westchester County, furnish marble of good 

 quality but of rather coarse texture. That from Pleasantville is par- 

 ticularly remarkable in this respect, being made up of large snow-white 

 crystals, often an inch or more in length, whence it derives its popular 

 name of snowflake marble. On account of its coarseness it is not well 

 adapted for carved work or for use in long columns. The Tuckahoe 

 stone is not quite so coarse in texture and has been more extensively 

 employed for building purposes. St. Patrick's Cathedral, on Fifth ave- 

 nue, New York City, is of this stone. At Sing Sing and Dover Plains 

 are other quarries of rather coarse white dolomitic marble, but which 

 are not extensively worked. 



A very coarsely crystalline light-gray magnesian limestone of Arch- 

 aean age occurs at Gouverneur, in Lewis County. Although too coarse 

 for carved work it answers well for massive structures, and, as it ac- 

 quires a good surface and polish, is used to some extent for ornamental 

 work. It is believed to be durable, since gravestones in the vicinity 

 which have been set upwards of seventj' years still present clean and 

 uniform surfaces, and are free from lichens and discolorations of any 

 kind. 



