234 PATHOGENIC MICROORGANISMS. 



What other pathogenic streptothrices have been described and studied ? 



What are the yeasts ? 



How do they differ from the moulds ? 



What are the moulds? Describe them. 



What diseases are the moulds responsible for? 



What is a ringworm ? Its morphology and staining properties ? Biolog- 

 ical character? 



What causes favus? Give the morphology and biological character of 

 Achorion Schonleinii. 



What is tsenia versicolor? What fungus causes it? What its staining prop- 

 erties and biological character? What disease does it cause? 



Malaria. 



What is the Plasmodium malarise f 



How many life-cycles has it? Where are those phases of life completed ? 



Describe the life-cycle of the plasmodium in man. 



What are the two principal symptoms of malaria, and what relation have 

 thev to the development of the parasite? 



What differentiates the varieties of the malarial parasites from each other ? 



What three varieties are at present recognized ? 



What forms of fever are caused by these different varieties? 



What life-cycle only begins in the body of man ? 



Describe the flagellated and non-flagellated bodies? 



What are the crescent bodies? 



How do those crescent bodies or their homologues develop in the body of 

 the mosquito? 



What are the microgametocytes? 



What are the macrogametes ? 



Describe the development of the fecundated macrogametes in the mos- 

 quito ? 



What are the sporozoites, and how do they infect man ? 



What is the duration of the life-cycle parasite in the mosquito? 



Does the mosquito transmit the malarial parasite to its larva? 



What is meant by the double-tertian and double-quartan forms of mala- 

 rial fever ? 



To what is the quotodian form of fever due? 



Give the technic for the examination of fresh malarial blood for diag- 

 nostic purposes. 



How are stained specimens prepared for examination? 



What is the differentiation between the quartan and tertian parasite in 

 the blood ? 



Is the blood of malarial patients infectious ? 



Amoeba Coli. 



Where is the Amoeba coli found? To what kingdom does it belong? 

 Describe it. 



What is the endoplasm ? What is the ectoplasm ? 



How is Amceba coli stained ? 



What may be seen in the body of the Amceba coli? 



What causes the motion of the amoeba ? 



How is examination for the Amoeba coli practised ? 



How do the Amceba coli and Amoeba histolytica differ? 



