A microscope which has a high three-dimensional resolution, does not require specimens to be stained and is easy to operate, is presented. A holding plate is provided in the sound attenuator housing in the flow direction and is perforated in the flow direction. The plurality of segments of the document is mapped with corresponding segments of at least one template selected from a set of stored templates. The shield apparatus also includes a retainer integral with the binding member and in communication with the needle for temporarily retaining the binding surfaces in a non-binding position relative to the needle. The spine includes a hollow interior and perforations along an exterior surface. The heater includes a ferromagnetic conductor and an electrical conductor electrically coupled to the ferromagnetic conductor.