. A practical treatise on medical diagnosis for students and physicians . is particularlyreferred. The following notes are based on this book : Amtvlxv (Jf/scnferi(r vary in size from to mm. They arefiHuid most plentifully in the small gelatinous masses often to be seen inthe feces. They vary in number in different cases, and in the same caseat different times. The severer the lesions the more numerous are theamrtM)t¥. AVhen not a(;tive, they are round or oblong, and highly refrac-tive. They contain one or more vacuoles of varying size. Occasionallythe division into an ectosarc and
. A practical treatise on medical diagnosis for students and physicians . is particularlyreferred. The following notes are based on this book : Amtvlxv (Jf/scnferi(r vary in size from to mm. They arefiHuid most plentifully in the small gelatinous masses often to be seen inthe feces. They vary in number in different cases, and in the same caseat different times. The severer the lesions the more numerous are theamrtM)t¥. AVhen not a(;tive, they are round or oblong, and highly refrac-tive. They contain one or more vacuoles of varying size. Occasionallythe division into an ectosarc and endosarc is easily made out. When thusinactive, they may be confounded with swollen connective-tissue cells andcompound granular bodies found in feces. The active amoebse have, how-ever, a characteristic movement. This consists of progression and ofthrusting out and retraction of pseudopudia. Their activity varies is best seen when the body heat is maintained. The stools should bepassed into a clean and warm pan, and examined immediately or kept Fig. Amosba coli. (Hallopeau.) warm until examined, and a warm stage should be used with the micro-scope. The division into ectosarc and endosarc is usually clear duringactivity. The ectosarc is composed of a hyaline homogeneous mass, as arethe pseudopodia, while the endosarc is made up, not of granular matter,but of a dense homogeneous mass enclosing vacuoles and a nucleus. Thevacuoles may vary in size as well as in number. There may be one ortwo large ones, or the entire endosarc may appear as made up entirely ofsmall vacuoles. The nucleus is sometimes plainly seen as a small roundedbody, but is more often difficult to distinguisb from the vacuoles. Driedcover-slip preparations may be stained with the various aniline dyes, butthe results are not satisfactory. The amoebse wall often be found to enclose bodies such as red blood-corpuscles, pus-cells, blood-coloring matter, bacilli, and micrococci. ^ Johns Hopkins Hosp
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