THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL. 



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



VOL. XXI. MAY, 1900. NO. 5, 



CONTENTS. 



Australian Ticks. With Frontispiece 123-127 



Formalin as a Reagent in Blood Studies. Kizer 128-129 



Notes by F. S. ScAi.ES. — Gregarinida ; Amos Topping ; New 

 Microtome ; Light ; Spongilla lacustris ; Second-hand Ob- 

 jectives; "Work ; Light 129-141 



Biological Notes — Pammel. — Zymase in Yeast; Vicia 

 Seeds ; Arctic Bacteria ; Vitality in Alcohol ; Cucurbitaria ; 

 Variability in Bacteria ; Parasites in Bacteria ; Bacillus 

 Coli and Cloacae ; Sporotrichium ; Hybrid Coffees ; Ther- 

 mal Death Point ; Alpine Plants ; Haustoria of Erysiphas... 141-144 

 Notes bY J. H. Cooke. — Micro-technique; Plankton; Mi- 

 crography ; Condenser ; Ground-glass; Lacquer 145-174 



Societies. — Royal Microscopical 147-149 



Miscellaneous Notes.— Klondyke ; Mould ; To Etch Crys- 

 tals ; Botanical Bulletin 149 



Australian Ticks. 



With Frontispiece. 



Cattel Ticks. — Mr. C. J. Pond was at one time con- 

 nected with the Bacteriological Laboratory at King's 

 College, but being subsequently appointed, by the Queens- 

 land Government, Director of the Brisbane Stock Insti- 

 tute, he went to the Colony, and has since been actively 



explanation of the plate. 



THB TICK AR«IAS RBFLECTUS 



Fig. 1 Dorsal aspect, from a specimen mounted in Canada Balsam. 



Pig. 2. Ventral aspect, from a dry and unmounted specimen. 



Pig. 3. Mouth organs, ventral aspect, from a dry specimen. 



Pig. 4. Pore- foot, from Balsam specimen. 



Pigs. 1 and 2, enlarged S^j times , 3 and 4 enlarged 65 times. 



y 



