The management and treatment of the horse in the stable, field, and ...

In the Stable, Field, and on the Road. 227
There is one which is called taenia medicanellater ; it is
the tapeworm which the human host obtains when it
eats underdone beef; it is the most common form of
human tapeworm. It is quite a delusion to think that
the pork tapeworm is as common as that derived from
beef." Professor Cobbold says, " I can speak quite con-
fidently on this point, because I have investigated this
subject very carefully. The beef tapeworm has four
suckers, but no hooks. The one from pork is recognised
by its head having a series of hooks in addition to four
suckers, taenia solium." The tapeworm is a most
remarkable creature ; it consists of a head and a
segmented body, which is sometimes twenty feet long
or more ; each oi its joints or segments is what Pro-
lessor Huxley would term a zooid ; it is a sort of semi-
independent whole ; in fact, a tapeworm is not a single
creature, but a multitude of creatures, all arranged
together in single file. You probably have made
acquaintance with those pretty objects which are found
on the sea-shore, the zoophyte or polypus, with its
numerous heads. Now, the compound polypus is a
colony of individuals, branching out like a tree ;
but the
tapeworm is a colony of polypus ranged together in a
single file like a regiment of soldiers, and thus one long
creature is produced by a number of little beings ad-
hering together. Some 1200 individuals are here joined
together so as to form a colony. Professor Cobbold
says— " I will explain something specially peculiar and
interesting about the tapeworm. I have performed a
series of experiments which have resulted in giving us a
more perfect knowledge of the entire life, history, and