In the United States, US Postal Stamps are rated in 0.01 cent and up; the postage for a first class letter is 0.44 cents (of normal size and weight).
Trematodes are flattened oval or worm-like animals, usually no more than a few centimetres in length, although species as small as 1 millimetre (0.039 in) (Monogenea) and as large as 7 centimetres (2.8 in) (Fasciolopsis) are known. species that exemplifies the remarkable life history of the trematodes is the bird fluke, Leucochloridium paradoxum. The definitive hosts, in which the parasite reproduces, are various woodland birds, while the hosts in which the parasite multiplies (intermediate host) are various species of snail.
Dermatome, surgical instrument used for cutting thin sheets of skin, as for skin grafts. There are several different types of dermatomes. Knife dermatomes, which are handheld instruments, require a high degree of technical skill and may not produce consistent results. Drum dermatomes are cylindrical in shape and have an oscillating blade that is operated manually.