Wonders of the Spiral Plate.-if this curious and artistic spiral play, which is seen to wine 2 ½ times around, could be enrolled and made to stand in an upright position, you would make a beautiful microscopic heart, that of a thousand strings, but of 3000 strings, and if it were possible to strike these [...]

Show of Ear Canals. – the semicircular canals, and the cochlea, so named for its resemblance to a snail shell, are also typically shown. And the nice colored illustration we observe a graphic and truthful view of the delicate internal arrangement and mechanism of the internal part of the organ of hearing. Here we observe [...]