PARASITES OF MAN'. 59 



10. — nexathyridium venarum, Treutler. 



Syn. — To the genera given above, add Hexacotyle, Blainville. 

 Kemarks. — Said to have been found on four occasions ; by Treutler 



once, by DeUe-Cbiaje twice, and once by Follina. Infests the 



blood. 

 Lit. — As above ; and in general treatises. 



11. — Amphistoma hoviinis, Lewis and McConnell. 

 SjTi. — None. 

 Larvse. — Unknown. 

 Eemarks. — Infests the intestine. Twice found ; in the first 



instance by Dr. O'Brien, of Gowatty, and Dr. Curran together. 

 Lit. — Lewis and McConnell ; in Proceed, of the Asiatic Soc. of 



Bengal, 1876. 



12. — Bilharzia hamatobia, Cobbold. 



Syn. — Distoma hamntohium. Bilharz ; Gyyi^cophorus, Diesing ; 

 Thecosonui, Moquin-Tandon ; Srhi>:tosoma, Weinland. 



Larvae. — Cercaria unknown. Free cihated embryo cone-shaped. 



Remarks. — Infests the veins, especially the portal system of 

 blood vessels. Frequent in Africa. 



Lit. — In standard works ; the details being chiefly from Bilharz, 

 Griesinger, Harley, and Cobbold. See also Sonsino ; Sugli 

 ematozoi come contributo alia Fauna entoz. egiziana ; Cairo, 

 1877 ; and in Arch. Gen. de Med., for June, 1876. 



fTO BE CONTINUED.] 



ON THE STUDY OF THE MOSSES. 



BY JAMES E. BAGNAliL. 



Meek creatures 1 the first mercy of the earth, visiting with hushed softness 

 its dintless rocks ; creatui-es full of pity, covering vfith strange and tender 

 honour the scarred disgrace of ruin — laying quiet finger on the trembling 

 stones, to teach them rest. No words, that I know of, will say what these 

 mosses are. None are deUcate enough, none perfect enough, none rich enough. 

 How is one to tell of the rounded bosses of fuiTed and beaming green, — tha 

 starred divisions of rubied bloom, fine-filmed, as if the rock spirits could 

 spin porphyry as we do glass, — the traceries of intricate silver, and fringes of 

 amber, lustrous, arborescent, burnished through every fibre into fitful bright- 

 ness and glossy traverses of silken change, yet all subdued and pensive, 

 and framed for simplest sweetest ofBces of grace ? They whl not be 

 gathered, hke the flowers, for chaplet or love-token ; but of these the wild 

 bird will make its nest, and the wearied child his pillow. 



And, as the earth's first mercy, so they are its last gift to us : when all other 

 service is vain, from plant and tree, the soft mosses and gray hchen take 

 up then* watch by the head-stone. The woods, the blossoms, the gift- 

 bearing grasses, have done their parts for a time ; but these do service for 

 ever. Trees for the builder's yard, flowers for the bride's chamber, corn 

 for the granary, moss for the grave. 



Raskin's " Modern Painters." — Vol. V., pp. 102-3. 



A walk through green fields, country lanes, or woods, is rendered 

 more enjoyable, and I beheve more conducive to healthy exercise, if we 

 have some special study to call us there, than such a walk would be if 

 indulged in for the mere sake of what is termed a constitutional. For 

 it is well to have something that will for a time enable us to forget th'J 



