Abstract: A razor has a head portion to which a blade is mounted, and a soluble lubricating member which is, on the surface of the head portion, located on the upper side of the blade. An exposure surface of the soluble lubricating member is surrounded by a left end and right end extending in the direction of the edge of the blade, and front and rear edges that connect the left end and right end with each other, on both sides thereof in a widthwise direction of the blade. The exposure surface is composed of a plurality of sectional surfaces located between the left end and right end. The sectional surfaces include a maximum sectional surface having a maximum peak portion maximum in height on a predetermined reference plane of height.

Abstract: A method is provided for industrially preparing a group II-VI or III-V compound single crystal from a polycrystalline group II-VI or III-V starting compound, such that the resultant single crystal has a small number of crystal defects by effectively preventing polycrystallization. The method includes steps of coating an inner surface of a crucible with a film consisting of powdered solids and a vitreous substance, placing the polycrystalline compound in the coated crucible, placing the crucible in a furnace, heating the crucible with furnace for melting the polycrystalline compound in the crucible, and cooling the crucible and the melted compound for growing a single-crystalline compound. Additionally, the surface of a seed crystal and a gap between the seed crystal and a wall of the crucible may also be coated with a film of powdered solids and a vitreous substance.