610 
ZOOLOGICAL LITERATURE. 
and animals. He quotes a lengthened passage from Leuckart 
(Ueber die Blasenbaudvviirmer und deren Entwicklung. Giessen, 
1856, p. 43), in which the latter authority drew early and pro- 
minent attention to this resemblance, and supported his deter- 
minations by the sanction of his colleagues J. Vogel Wernher, 
and Bischoff. Dr. Hosier might as well have mentioned that 
in the passage he quotes Leuckart was recording the results he 
had obtained by feeding rabbits with the proglottides of Tcsnia 
serrata. It is impossible that the reader of Mosler^s pamphlet 
should know this, unless, by chance, he had previously consulted 
Leuckart^ s memoir. The quotation having a special interest, 
we give a part of it : — 
The liver was in a similar condition to that described in the 
feeding-experiment with Taenia crassicoUis, partly occupied with 
little white punctiform specks ; only, in this case, the number 
of these comparatively larger formations was endless and might 
be estimated at several thousand. The surface of the liver (as 
also observed by Haubner and Kiichenmeister in a similar in- 
stance) was precisely the same as in a miliary tuberculosis ; so 
that any one ignorant of the experiments employed would in- 
evitably have diagnosed the appearances in this sense. 
Part of the original passage occurs in a foot-note, but the sepa- 
rate parts are here blended into one quotation. Dr. Hosier 
then passes on to speak more particularly of the specific difter- 
ences between Taenia solium and T. mediocanellata. Here also 
he follows Leuckart closely. At page 8 he commences an inter- 
esting account of his successful experiment. On the lOtli of 
Harch (1863), at 3 p.rn.,^^ he says, I introduced along with 
milk 100 ripe proglottides into the throat of a sound, well- 
formed calf which was about two and a half months old. The 
Tieniie had been immersed in water seven days.^^ The animal 
was carefully watched, and on the 13th of Harch -fifty additional 
proglottides were administered. The calf remained vigorous 
and apparently healthy until the Jilst of Harch, when several 
morbid symptoms appeared, eleven days having elapsed since 
the first, and eight days since the second feeding.^^ These 
symptoms eventually became so aggravated that the animal died 
on the 1st of April. 
Hucli instruction may be gathered from the two very ably 
executed plates, affording, as they do, a much better notion of 
the general appearances presented by the larvfe than could pos- 
sibly be obtained by mere description alone. The two drawings 
severally represent the external surface of the heart, and the 
same organ in section, several hundred cysticercus-vesicles being 
represented in situ. As only three weeks had elapsed since the 
first feeding-experiment, the individual vesicles were scarcely 
larger than an ordinary pin^s head. Some of the viscera (as, for 
example, the liver and spleen) contained no cysticerci. 
