Collected papers . Cliilomastix gallinarum, showing the four free flagella,blepharoplast, well-developed phaiynx, and nucleus. Abbreviations.—Ax. Axostyle. BJ. Blepharoplast. Basalgranules. Chr. B. Chromatic blocks. Chr. L. Chromatic line. F. Free flagelhun. Ka. Karyosome. Membraneflagellum. Nu. Nucleus. Ph. Pharynx. ; 1 In this the first part of oiu- paper we only deal with the morphologyof the flagellate parasites we have found. In the second part we givean account of the other aninral parasites and of the results obtainedfrom new infections. FURTHER OBSERVATIONS OX
Collected papers . Cliilomastix gallinarum, showing the four free flagella,blepharoplast, well-developed phaiynx, and nucleus. Abbreviations.—Ax. Axostyle. BJ. Blepharoplast. Basalgranules. Chr. B. Chromatic blocks. Chr. L. Chromatic line. F. Free flagelhun. Ka. Karyosome. Membraneflagellum. Nu. Nucleus. Ph. Pharynx. ; 1 In this the first part of oiu- paper we only deal with the morphologyof the flagellate parasites we have found. In the second part we givean account of the other aninral parasites and of the results obtainedfrom new infections. FURTHER OBSERVATIONS OX CECAL PARASITES OF FOWLS. 55 below, we feel that we are justified in publishing the resultsobtained for the following reasons : (1) Our preparations were always made from the wall ofthe cavity containing the parasite, and not simply from thecontent of the cavity. Owing, we believe, largely to thisfact, we have not only obtained a far more complete series of Text-fig. Trichomonas gallinariim, showing four free flagella, mem-brane flagellum, blepliaroplast, cytostome, nucleus, chromaticblocks, and chromatic line. division of the active forms that seems to have fallen to thelot of the earlier workers on similar forms, but we have alsogot an interesting series of new stages which must, we areconvinced, play an important part in the final construction ofthe life-cycle of these forms. (2) Owing to the ease with which it is possible to obtainnewly hatched chicks and keep them free from all animal 56 C. H. MARTIN AND MUKIEL EOBERTSON. parasites, we have obtained some really trustworthy data asto the course run by new infections of these forms. Text-fig. 3.
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