410 NEW YORK STATE MUSEUM 



Iron sinter. Beck. Iron Slater. Min. N. Y. 1842. p.396-97. 



Iron, sulfate of, see Copperas. 



Iroquois, see Indians. 



Iroquois, Lake, see Glacial lakes. 



Ischua sandstone. Horsford. Iscliua Sandstones. Geol. rep. 4th dist. (for 

 1839) 1840. p.466, 469. 



Isopoda, see Crustacea. 



Ithaca group. Clarke. Stratigraphic and Faunal Relations of the Oneonta 

 Sandstones and Shales, the Ithaca and the Portage Groups in Central 

 New York. Geol. rep. 15 (for 1895) 1897. p.11-12, 27-81. pi. (phot.) 

 2 maps, 25x28.5, 26x26:5cm. Savie, Mus. rep. 49 (for 1895) 1898. 

 2:11-12, 27-81. pi. (phot.) 2 maps, 25x28.5, 26x26.5cm. 



■Clarke. Historical and Actual Significance of the Terms Ithaca Group 

 and Ithaca Fauna. Geol. rep. 15 (for 1895) 1897. p.46-52. Same, Mus. 

 rep. 49 (for 1895) 1898. 2:46-52. 



Clarke. Ithaca Fauna. Mus. bul. 52. 1902. p.670-71. 



Clarke & Schuchert. Ithaca Beds. See New York series. 



Emmons. Ithaca Group. Ag. N. Y. 1846. 1:190-93. 



Geddes. Ithaca Group of Onondaga County. Ag. Soc. Trans. 19 (for 



1859) 1860. p.254. 

 Hall. Ithaca Group. Geol. N. Y. pt4. 1843. p.250. 

 Hall. Ithaca Group in Chemung County. Geol. rep. 4th dist. (for 1838) 



1839. p.321-22. 

 Hall. Ithaca Group in Steuben County. Geol. rep. 4th dist. (for 1838) 



1839. p.325. 

 a Hall. Ithaca Group in Tompkins County. Geol. rep. 4th dist. (for 1838) 



1839. p.318. 

 Mather. Ithaca and Chemung Group. Geol. N. Y. ptl. 1843. p.317. 

 Prosser. Ithaca Formation. Geol. rep. 15 (for 1895) 1897. p.87-94. Same, 



Mus. rep. 49 (for 1895) 1898. 2:87-94. 

 Vanuxem. Ithaca Group. Geol. rep. 3d dist. (for 1839) 1840. p.381. 



Geol. N. Y. pt3. 1842. p.170-71, 174-78. 

 Vanuxem. Ithaca Group in Cayuga County. Geol. N. Y. pt3. 1842. p. 289. 

 Vanuxem. Ithaca Group in Chenango County. Geol. N. Y. pt3. 1842. 



p.292-93. 

 Vanuxem. Ithaca Group in Cortland County. Geol. N. Y. pt3. 1842. 



p.290. 

 Vanuxem. Ithaca Group in Madison County. Geol. N. Y. pt3. 1842. p. 277. 

 Vanuxem. Ithaca Group in Onondaga County. Geol. N. Y. pt3. 1842. 



P.2S5. 

 Vantixem. Ithaca Group in Otsego County. Geol. N. Y. pt3. 1842. p.254. 

 Vanuxem. Ithaca Group in Tompkins County. Geol. N. Y. pt3. 1842. 



p.298. 

 Vanuxem. Fossils. Geol. N. Y. pt3. 1842. p. 175-77. 

 Ivy scale insect. Felt. White Scale Insect of the Ivy. Mus. bul. 46. 1901. 



P.3.3S-36. Same, Mus. rep. 54 (for 1900) 1902. 4:333-36. 

 Lintner. The White Scale. Ent. rep. 11 (for 1895) 1896. p.203-4. Same, 



Mus. rep. 49 (for 1895) 1897. 1:203-4. 

 ■ Mus. bul. 13. 1895. p.271-72. Same, Mus. rep. 48 (for 1894) 



1895. 1:271-72. 

 JefEerson county. Beck. Mineralogy. Min. rep. (for 1839) 1840. p. 70-72. 

 Emmons. .Tefferson County. Geol. rep. 2d dist. (for 1839) 1840. p.321-26. 



Geol. N. Y. pt2. 1842. p.368-414. 



« First use of term. 



