EXTRACTS AND ABSTRACTS FROM FOREIGN JOURNALS. 187 



the proper coats of the seed, and regarded as an " integumentum ex- 

 terius " since there exists beneath it an " integumentum simplex mem- 

 branaceum." We do not find any where amongst the Cruciferse a 

 semblance to this, or at the most a delicate epidermis lying closely upon 

 the testa, which sometimes spreads out at its margin in a winged man- 

 ner. Besides, within this covering which loosely envelopes the seed we 

 find the umbilical cord, and which cannot be in the least compared with 

 a raphe. Further who ever observed in a ripe seed of the Cruciferae an 

 "Embryo gramineo-viridis." The thickening of the radicle near its 

 extremity, is a condition which as far as I know is found in no Crucife- 

 rous plant. 



Pugionium must be removed from the Cruciferse, it belongs to the 

 family Chenopodeae. 



Bange on the Seed of Dipterygium glaucum. This plant is not one 

 of the Cruciferse but belongs to the tribe Capparideae. This view I 

 adopt from the presence of an albumen enclosing the embryo as it does 

 in Capparideae, this was described by Decandolle as an " Endopleura 

 tumida," whilst others have wrongly denied the presence of an albu- 

 men. 



[From Okens Isis, Heft 3, 1842.] 



Meyer on the Anatomy of the Entozoa. The indefatigable author has 

 here given us very full and able dissections of the intestinal worms, the 

 internal structure of which has hitherto not been sufficiently known. 



Trichocephalus dispar from the Caecum is first described, and drawn 

 highly magnified both male and female on tables 1 and 2. The intes- 

 tinal tube is fully represented with the oral and anal apertures, as also 

 the seminal vessel with the ruthe near the anal opening. The female 

 organs are also equally well shown. The oviduct is exceedingly long, 

 commencing posteriorly near the anal orifice, then running as far as the 

 stomach and turning back again to the anus it proceeds once more close 

 to the stomach where it opens in the middle third of the body. The 

 ova are drawn highly magnified. 



Oxyuris ambigua both male and female, ar.d the male of O. acuminata 

 are represented on table 3. The opening of the seminal canal is near 

 the anus, just before the point of the tail, that of the female is further 

 forward. The male and female organs of Distoma appendiculatum are 

 well developed in table 3, fig. 12, and the same may be said of D. cy- 

 lindricum, table 3, fig. 13. 



The dissections of Octobothrium lanceolatum call for especial praise, 

 four pair of suckers are drawn posteriorly, two anteriorly near the 

 mouth, behind these one with ten teeth where the male and female 

 canals open ; the stomach is double and blind, and runs backwards, the 

 ovi-sac especially is very large, the seminal duct contains large seminal 

 capsules, which are also drawn highly magnified. 



No circulating apparatus is to be seen, and that which Nordmann 

 took for the circulation in Diptozoon was but the movement of cilia. 



