372 METHODS USED IN SYSTEMATIC BACTERIOLOGY 



Translucent : objects, e.g. window bars, are visible through growth, but growth 



is not water-clear. 

 Transparent : growth is water-clear. 

 Truncate : ends abrupt, square. 



Turbid : cloudy ; may be a uniform, floccident, or granular turbidity. 

 Umbonate : having a button-like, raised centre. 

 Undulate : border wavy, with shallow sinuses. 

 Unipolar : at one end only of the bacterial cell. 

 Viscid : sticky, semi-fluid ; on withdrawal of the needle, the growth follows it 



in the form of a thread ; sediment on shaking rises as a coherent swirl. 



REFERENCES 



Barritt, M. M. (1936) J. Path. Bad., 42, 441. 



Conn, H. J. (1936) J. Bad.. 31, 225. 



Happold, F. C. and Hoyle, L. (1934) Biochem. J., 28, 1171. 



Hendry, C. B. (1938) J. Path. Bad., 46, 383. 



HoLMAN, W. H. and Gonzales, F. L. (1923) J. Bad., 8, 577. 



LiNDSEY, G. A. and Rhines, C. M. (1932) J. Bad., 24, 489. 



O'Meara, R. a. Q. (1931) J. Path. Bad., 34, 401. 



Reed, R. W. (1942) J. Bad., 44, 425. 



TiTTSLER, R. P. (1931) J. Bad., 21, 111. 



ZoBELL, C. E. and Feltham, C. B. (1934) J. Bad., 28, 169. 



