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..
Between 1854 and 1859 Grant worked and lived on an 850-acre farm in Missouri, near St. Louis, that was owned by his father-in-law. Grantâs wife, Julia, also owned slaves, and during Grantâs management of the farm he worked along with one of them, a man named Dan. The farm is now the Ulysses S. Grant National Historic Site, part of the National Park Service.