BIBLIOGRAPHY 221 



Foa's solution : 1, solution of mercuric chloride in 0*75 saline solution 

 made by boiling excess of the salt and allowing the solution to cool ; 

 2, 5 % a solution of bichromate of Potassium. Small portions of tissue 

 are placed in a freshly made mixture of equal parts of 1 and 2 and after 

 12 hours are transferred to running water, then to 75 % alcohol and then 

 to graduated alcohols to which tincture of iodine is added to remove the 

 mercuric salt from the tissue ; finally to absolute alcohol. 



BIBLIOGRAPHY. 



ARTHUS, MAURICE ; Precis de Physiologic Microbienne ; Paris, 1921. 



BALFOUR, ANDREW ; Spirochaetosis of Soudanese Fowls ; Wellcome 

 Tropical Research Literature 4th Report. 1911. p. 76. 



BARRETT, J. T. ; Development and Sexuality of Some Species of Olpi- 

 diopsis ; Ann. of Bot. 1912. p. 209. 



BARY, ANTON DE ; die Mycetozoen, 1864 ; and Pilze, Mycetozoen, und 

 Bakterien, 1884. 



BAYLISS, W. M. ; Principles of General Physiology ; 3rd edit. 1920. 



BESSON, A. ; Pract. Bacteriology. Microscopy and Serum Therapy, Eng. 

 Trans, by H. J. Hutchens. 1913. 



BLAKESLEE, A. F. ; Sexual Reproduction of the Mucorineae. Cont. 



Crypt. Lab. Harv. Univ. 1904. 

 BLOMFIELD, J. E. and SCHWARTZ, E. J. ; Observations on Tumours 



caused by Sorosphaera Veronicae, Ann. of Bot. Jan. 1910. 

 BORREL, A. ; Epithelioses Infectieuses et Epitheliomas, Ann. d. 1'Inst. 



Pasteur. Jan. 1903. No. 2. 

 BORREL, M. ; Molluscum, &c. Bull. d. 1' Soc. Fran$. de Dermatol, &c. R. 



de Strasb. No. 6. 1921. 

 BONHOFF, H. ; Spirochaetae in Vaccinia ; 9 Figs. Berl. Klin. Woch. 



4 Sept. 1905. 



Bosc, F. J. ; Les Maladies Bryocytiques ; Cent, fur Bakt. 1 Abt, 1904. 

 BOWER, F. 0. ; Practical Botany. 1891. 



