THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL. 



Entered at the post-office as second-class matter. 

 VOL. XX. • DECEMBER. 1899. NO. 12. 



CONTENTS. 



Aspergillus oryzae. Golden. With frontispiece 351-3^0 



Formaldehyd Disinfection 360-366 



Picro-carmine and Alum-carmine as Counter Stains. Myers.... 367-369 



Fusulina Cylindrica Shell Structure. Smith 369-371 



Biological Notes. — Pammel. — Tsetse Fly Disease; Mallein; 



Milk of Tuberculous Animals ; Texas Cattle Fever ; Rusts.... 372-374 

 Microscopical Apparatus. — A New Immersion Objective; 



New Condenser. 374-375 



Microscopical Manipulation. — Preparing Nutrient Agar- 

 agar ; Method of Demonstrating Presence of Malarial Or- 

 ganisms in the Blood 375-376 



Microscopical Societies.— Manchester,England 37^-377 



New Publications. — Catalogues; the Fixation, Staining and 

 Structure of Protoplasm or Modern Cell Study 377-378 



Aspergillus Oryzae. 



K. E. GOLDEN. 



\X/'ith Frontispiece. 



This is a mould which is of much practical interest by 

 reason of its zymotic activity, since it secretes a diastatic 

 ferment, and also for the claim which has been made that 

 under certain conditions of growth, it is convertible into 

 a yeast, and that, like most yeasts, it can give rise to al- 

 coholic fermentation. It would constitute, in fact, if all 

 claims made for it were true, a good working basis for an 

 entire distillery. It has been used by the Japanese for cen- 

 turies in one of their important fermentation industries, 

 that of sake brewing, though like many other ferments 



