Nile blue. Nile blue (or Nile blue A) is a stain used in biology and histology. It may be used with live or fixed cells, and imparts a blue colour to cell nuclei. It may also be used in conjunction with fluorescence microscopy to stain for the presence of polyhydroxybutyrate granules in prokaryotic or eukaryotic cells. Boiling a solution of Nile blue with sulfuric acid produces Nile red (Nile blue oxazone).
Ulysses S. Grant Gravesite. Location: General Grant National Memorial, Riverside Park. Address: Riverside Drive and West 122nd St, New York, New York. As seen in the photograph above, Grant is interred in an above ground sarcophagus. Therefore, the answer to the question, Who's buried in Grant's tomb is correctly answered, no one..
Ulysses S. Grant Memorial. The memorial to Ulysses S. Grant was dedicated in 1922. It is located in Union Square, west of the U.S. Capitol Building, by the Capitol Reflecting Pool. In late 2011, the care of the Grant Memorial was transferred from the National Park Service to the Architect of the Capitol.