LII 



Park. Pamphlet- pp. 19. reprinted from Sci. Amer. Supplem. dec. 27, 1884. 



Also: Notice of, in Bull. Torrey Bot. Cl. vol. XII, p. 12. 8vo. New York 1885. 

 Gravenhorst Dr. J. L. C. — Naturgeschichte der Infusionsthierchen nach Ehrenbergs 



grossen Werke iiber diese Thiere, in einer gedriingten vergleichenden Ue- 



bersicht dargestellt. 8vo. Breslau 1844. 

 Gravis Dr. A. — Observations sur 1'endochrome des Diatomees par P. Petit. Bull. 



Soc. Belg. Micr. t. 10, p. 109. 8vo. Bruxelles 1880. 

 Gray Dr. J. E. and Carruthers W. — Handbook of British fresh-water weeds or al- 



gge. The Diatomacese, by W. Carruthers. 8vo. London 1864. 

 Gray Dr. W. — Balsam of Tolu for mounting. J. R. M. S. p. 160. 8vo. London 1885. 

 Green N. E. — On the examination of the surface markings of Diatoms by the Oxy- 



calcium light. 1 Plate. J. Q. M. C. vol. II, p. 232. 8vo. London 1871. 

 Greenleaf R. C. — On a new species of Nitzschia (N. Mitchelliana). Proc. Boston 



Soc. Nat. Hist. 1865, p. 107. 1 Woodcut. Boston 1865. 



— List of Diatomacese found in a peat swamp near Lake Winisquam in Laco- 



nia N. H. Proc. Boston. Soc. Nat. Hist. 1866, p. 75. Boston 1866. 



— Diatoms found in Soundings from the Gulf of Mexico. Proc. Boston. Soc. Nat. 



Hist. 8vo. Boston 1866. 



— On the Diatoms and other microscopic objects found in Soundings from the 



Gulf of Mexico, between Sand Key and Elmoro, made by Henry Mitchell 

 of U. S. Coast Survey. Proc. Boston. Soc. Nat. Hist. vol. XI, p. 79. 8vo. 

 Boston 1866. 



— On the double plate of Aulacodiscus oregonus. M. M. J. vol. II, p. 326. 8vo. 



London 1869. 

 Greger A. — Etwas tiber die Diatomaceen in Temesvar. Fermes danianyi futzet. 



Org. Siid. Nat. Ges. vol. II. 

 Gregory W. M. D. — On a remarkable group of Diatomaceous forms, and on new 



species of fresh water Diatoms etc. with MS. notes and additions by Grego- 



ry. 1834-35. — (These belonged to the late Dr. Rabenhorst and are now the 



property of J. Deby F. R. M. S.) 



— Notice of a diatomaceous earth found in the Isle of Mull. T. M. S. vol. I, n. 5, 



p. 92. 8vo. London 1853. 



— Additional observations on the Diatomaceous deposit of Mull. Q. J. M. S. vol II, 



p. 24, 8vo. London 1854. 



— Notice of the new forms and varieties of known forms occurring in the Dia- 



tomaceous earth of Mull, with remarks on the classiflcation of the Diatoma- 

 ceee. Q. J. M. S. vol. II, p. 90, pl. IV. London 1854. 



— Observations on some deposits of fossil Diatomacese. T. M. S. vol. II, n. s. 



p. 104. 8vo. London 1854. 



— On a remarkable group of diatomaceous forms with remarks on Shape or out- 



line as a specific Character in the Diatomacese. T. M. S. vol. III, n. s. p. 10, 

 pl. II. 8vo. London 1855. 



— On a Post-Tertiary lacustrine Sand, containing Diatomaceous exuvise from 



Glenshira, near Inverness. Q. J. M. S. vol. III, p. 30, pl. IV. 8vo. London 1855. 



— On some new species of British fresh water DiatomaceEe, with remarks on the 



value of certain specific Characters. Proc. Bot. Soc. Edin. p. 38. 8vo. Edin- 

 burgh 1855. 



