Note:  Do not rely on this information. It is very old.


Haemin, a substance which can be manufactured trom blood. Its importance is due to the fact that it forms characteristic crystals which can be readily recognised under the microscope. If a small portion of dried blood, or of material in which the presence of blood be suspected, be finely powdered with a little common salt, placed on a glass slide, treated with a few drops of glacial acetic acid, and then heated to dryness, microscopic examination will show a number of dark brown rhombic crystals; the formation of these hcemin crystals thus constitutes a very delicate test for the presence of blood.

“Peter replied, ‘Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins. And you will receive the gift of the Holy Spirit.’”
Acts 2:38