Abstract: A method of producing highly purified factor IX from crude factor IX comprising binding an A-7 monoclonal antibody to an Affigel-10 column; partially purifying the crude factor IX to produce a partially purified factor IX; applying that factor IX to the A-7-Affigel-10 column with an application buffer; washing the column with 1-3M NaCl in 0.05M Tris-HC1, 20 mM MgCl.sub.2 and 1 mM Benzamidine HCl; eluting purified factor IX from the washed column with 20 mM EDTA; and separating purified factor IX from the EDTA. An improved factor IX product produced thereby.

Abstract: A procedure for the permanent attachment of upper dentures to the maxilla of the human mouth including sliting the maxilla horizontally immediately above the nasal floor, with the maxilla in a down fractured position, drilling at least one hole through the severed portion of the maxilla in a direction lateral to the slit, inserting a generally planar retaining device cooperative fastener means located therein where the fastener means are located over the hole to provide access from the bottom side of the maxilla, returning the maxilla to approximately its original position, with the retaining device located in the slit and fastening the severed portion of the maxilla to the balance of the maxilla to allow healing thereof with the retainer in place.

Abstract: A method for simultaneously measuring the formation bulk density and the thickness of casing in a cased well borehole is disclosed. Low energy gamma rays are emitted into the casing and formation in a cased borehole. Two longitudinally spaced detectors detect gamma rays scattered back into the borehole by the casing and surrounding earth materials. The count rate signals from the two detectors are appropriately combined according to predetermined relationships to produce the formation bulk density and the casing thickness, which are recorded as a function of borehole depth.

Abstract: A bow sight has a range-finding function that automatically aligns the trajectory path of the arrow to correspond to the range. The range is established by providing a sighting frame that establishes vertically-spaced reference lines that give the apparent height of a known object at a known distance. Rotation of the frame about a horizontal axis reduces the apparent spacing between the top and bottom of the frame, which is correlated to increased distance. As the frame is progressively rotated to the point that the apparent height corresponds to the observed height of the known object, the placement of the sighting frame with respect to the bow is altered vertically to align the bow with the correct trajectory for that distance.