An image processing apparatus has an acquisition unit which acquires a second tomogram related to a first tomogram of an eye to be examined based on position information of an eye fundus of the eye to be examined according to a predetermined rule; and a display control unit which displays the first tomogram and the second tomogram on a display unit. A plurality of fins are aligned in the direction along cylinder axes and are provided on sides of cylinders and on sides of dummy covers for covering at least part of cylinder heads from the sides. is in the range of 20 to 50 mNm. The coked catalyst composition is separated from the product stream and divided into at least first and second portions. A process of embedding a specimen in an acrylic polymer matrix, a cast of an embedded metal specimen, the use of an embedment composition for coating a specimen prior to an embedment coating process and use of an embedment composition as the copolymer resin component of an embedment slurry are also described. The main control unit detects and outputs the IPL boot code from the main ROM in response to a reset signal inputted thereto and then outputs the reset signal.