MICRO SCOPIOAL OBSERVATIONS. H 



BRYAN co., GA. continued. 



RICE FIELD MUDS. 



The mud from the rice fields on the Ogeechee was collected at the embank- 

 ments by the side of the canals and ditches on the following estates, viz : 



Cherry Hill, belonging to R. J. ARNOLD, Esq. 



Strother Hall, Col. MCALLISTER. 



A new plantation, " Judge LANGDON CHEVES. 



These muds all agreed in character with those examined near Savannah, and 

 furnished the following species, viz i 



Actinoptychus denarius, Ehr. Surirella splendida, Ehr. 



senarius, Ehr. Terpsinoe musica, Ehr. 



Coscinodiscus excentricus, Ehr. Triceratium favus, Ehr. 



subtilis, Ehr. " alternans, B. 



Dictyocha fibula, Ehr. " reticulum, Ehr. 



Gallionella sulcata, Ehr. Zygoceros rhombus, Ehr. 

 Pinnularia interrupta, Kg. 



" viridis, Ehr. Pollen pini. 



Ehaphoneis rhombus, Ehr. Phytolitharia, &c, 



BRYAN co., GA. continued. 



WHITE HALL, THE RESIDENCE OF R. J. ARNOLD, ESQ. 



In a ditch of an old rice field, and at some distance from the river, the follow- 

 ing species were found among the leaves of Utricularia verticillata, viz : 



Bacillaria paradoxa, Ehr. Closterium acerosum, Schr. 



Gallionella aurichalcea, Ehr. 



Himantidium arcus, Eljr. Arcella dentata, Ehr. 



Synedra spectabilis, Ehr. Vaginicola crystallina, Ehr- 



" vitrea, Ehr. 



DITCH NEAR THE CHURCH IN THE VICINITY OF WHITE HALL, 



This furnished the following : 



Ankistrodesmus falcatus, Corda. Micrasterias crenata, Breb. 



Aptogonum desmidium, Ehr. Pediastrum heptactis, Menegh. 



Arthrodesmus convergens, Ehr. Penium digitus, Breb. 



" incus, Breb. Scenedesmus obliquus, Kg. 



Didymoprium Borreri, Ralfs. Staurastrum dejectum, Breb. 

 Docidium verrucosum, B. gracile, Ralfs. 



Euastrum affine, Ralfs. Xanthidium aculeatum, Ehr. 



