THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL 



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



VOL. XXI. MARCH, 1900. NO. 3. 



CONTENTS. 



The Examination of Mounted Sections of Drugs 63-69 



Notes. — By F. Shillingtou Scales; Steel; Objective Changer; 



Histologist's Microscope ; Illumination ; Dissecting 69-75 



Biological Notes. — A Soil Organism ; Influence of Pure 

 Metal on Plants; Texas Cattle Fever; Penicillium Glaucum 



and Pellagra ; Dwarfing Alpine Plauts ; Lake Flora 75-79 



Notes.— By J. H. Cooke; Carbolic acid ; Cement; Diatomes ; 

 Crystals ; Insects ; Objectives ; A Tele-microscope ; Stand- 

 ards ; Fungi ; Air-bubbles 79-82 



Report of the Postal Micro. Club. R. H. Ward 83-86 



Notes on Slides. — Trichinosis ; Dermoid Cyst ; Sphaerozoum 

 Punctatum ; Midrib of leaf of Strclitzia ; Deposits in Steam 



Boilers 86-89 



Microscopical Societies.— St. Louis Academy 90 



Microscopical Apparatus. — Photo-micrographic 90-91 



Miscellaneous Notes. — Habits of Melicerta 91-92 



The Examination of Mounted Sections of Drugs, 



WILLIAM KIRBY. 



The study of microscopy is becoming of increasing im- 

 portance to the pharmaceutical student in the depart- 

 ment of materia medica. There is no need in this place 

 to emphazise its importance beyond saying that with each 

 change made by the Board of Examiners in the subjects 

 of examination, microscopy occupies a more prominent 

 position. No doubt the best plan to adopt in the anatomi- 

 cal and histological study of drugs is for the student to 

 prepare the material and put up his own mounted speci- 

 mens ; but there are many who are unable to devote the 

 time to 80 long a course, and they are, in consequence, 



