THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL. 



Entered at the post-office a second-clajs 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 bv F. S. Scales. — Grcgarinidae ; Amos Topping ; New 

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

 jectives ; Work ; Light 129-141 



B10LOGICA.L 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 Cotfees ; Ther- 

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

 Notes bvj. H. Cooke. — Micro-technique; Plankton; Mi- 

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



Societies. — Royal Microscopical 147-149 



MI3CEI.I.A.SEOUS 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 tlie 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 THK PLATE. 

 TH» TICK AR»1S HBFLECTUS 



Pig. 1 Dorsal aspect, from a specimen mounted In Canada Balaam. 



Fig. 2. Ventral a.spect, from a dry and unmounted specimen. 



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



Fig. 4. Fore- foot, from Balsam specimen. 



Figs. 1 »nd 2, enlarged SJ^ times , 3 and 4 enlarged 66 times. 



