CH. XXIV. HUNTER'S MUSEUM. 199 



large museum in Leicester Square, and arranged his collec- 

 tion so as to show which parts in different animals serve for 

 the same use. For example, to illustrate the way in which 

 animals digest their food, he placed first the hydras, polyps, 

 and sea-anemones, which are all stomach, being in them- 

 selves nothing but a simple bag surrounded by little feelers, 

 and having a fluid inside which dissolves the food. Then 

 he arranged in order many forms up to the leech, which is 

 a bag with tAvo openings, and has a head and nerves and 

 other parts, besides a stomach. Then came the insects, 

 some of which, as the bees, have a separate receptacle for 

 honey, of which they disgorge a part and then pass on the 

 rest into the real stomach. Then came the snails, in which 

 the stomach is a separate part with a second opening to 

 pass out the food it cannot take up. Then the fishes, some of 

 whom have stomachs strong enough to crush the shells and 

 indigestible parts of their food, while others have the mouth 

 lined with teeth for this purpose ; then came the stomachs 

 of reptiles ; and afterwards those of birds, with the curious 

 crop where the food lies first, and the gizzard, in which it is 

 rubbed against the little stones which the bird swallows. 

 Then finally came the stomachs of the higher animals, with 

 many curious and interesting peculiarities ; as for example, 

 the divided stomach of those animals, such as the calf, which 

 chew the cud, and of the camel, in which one division serves 

 as a water-bag. And side by side with these organs of 

 digestion he placed the teeth of each animal, showing how 

 these were each exactly fitted to prepare the food for the 

 particular kind of stomach of the animal to which they 

 belonged. 



In this way Hunter tried to arrange the history of all the 

 different organs of the body, tracing out each as perfectly as 



