Parasites of Muscular and Connective Tissue. 439 



living or dead, calcified cysts, or other bodies or substances hav- 

 ing any resemblance to trichinae or trichinae cysts." Ninety- 

 eight per cent of all pork passes under this head. It is tagged as 

 sound and certified for exportation. 



" Class B. Samples in which there are disintegrated trichinae 

 or trichinae cysts, calcified trichinae or trichinae cysts, or bodies 

 having any resemblance thereto. ' ' 



" Class C. Samples in which there are living or dead trichinae 

 bodies, not disintegrated." 



Together these two do not exceed 2 per cent. 



" All carcases coming within Cla.ss C. are removed from the 

 cooling room and disposed of by tanking, or they may be render- 

 ed into edible lard at a temperature of 150° F., or made into 

 cooked meat products if the temperature is raised to the boiling 

 point for a sufficient time to cook thoroughly the interior of the 

 pieces. Carcases belonging to Class B. are rejected for shipment to 

 countries requiring inspection and certification." 



In the year 1899, over one hundred and twenty million pounds 

 of pork were exported under this guarantee. The cost of in- 

 spection for that year averaged 0.142 cent per lb. 



FiLARiA Reticulata. Spiroptera (Onchocerca) Reticu- 

 lata (Cincinnati). Filaria of Digital Con- 

 nective Tissue and Synovial Sacs. 



Formerly described as Onchocerca Reticulata and Spiroptera 

 Cincinnati; this has now been remanded to the genus Filaria, 

 with which it agrees in its form and structure, its habits and 

 habitat. 



The length of the parasite is not definitely known, as it is found 

 wound around fibrous and muscular bundles and has not been 

 successfully extracted entire. It is .35 to .40 mm. in diameter in 

 ihe^ female and .15 mm. in the male. The length of the female is 

 estimated by Neumann at 40 to 50 cm. The body is filiform and 

 has the appearance of having been twisted, by reason of a series 

 of cuticular ridges running spirally around it and connected 

 through its substance by transverse filaments. Head without 

 neck; mouth round, terminal. Tail of male excavated beneath 

 and furnished with two lateral, vertical lobes with small hooklets 

 at their base and a papilla on the free border. Spiculum single. 



