Abstract: A method for the treatment of infertility is described involving recruitment of more than one oocyte by a unique and hitherto undescribed combination of goandotropins, the harvest of these oocytes prior to their spontaneous ovulation and their fertilization by exposure to sperm in vitro so that the resulting concepti can be transferred to the uteri of the donors and so overcome several forms of infertility.

Abstract: A method of in vitro fertilization therapy, which includes means for inducing ovulation by administering an exogenous human menopausal gonadotropin preparation and human chorionic gonadotropin, harvesting the mature follicles, combining the ovum with spermatazoa in vitro and transferring the conceptus into the uterus is improved by employing FSH as the exogenous human menopausal gonadotropin in the absence of exogenous LH.

Abstract: Improvements in support means for well risers wherein the risers extend through a rotary table on a floating vessel down to a subsea well. A spider supports the upper end of the riser and hydraulically operated gimbal means support the spider with respect to the table to maintain a constant load on the riser. Inertia absorbing means is associated with the gimbal means so that, when sections or buoyancy chambers or the like are added to the riser and it is lowered down to the well, or vessel movement takes place, any off-center load that is acting on the spider that is not equally distributed, the inertia absorbing means absorbs such load and equally distributes it so as to maintain a constant load on the riser.

Abstract: Apparatus and method for orienting a pair of drill strings or the like in a predetermined manner in the center of a bore through a blowout preventer. The drill strings extend from a vessel floating on the surface of a body of water down through the preventer into a subsea wellhead installation. A first pair of opposed rams are actuated to move the drill strings into a predetermined central zone of the bore through the blowout preventer. These first rams operate under a predetermined maximum compressive force of the rams on the drill strings. Above this force, a second pair of opposed rams are activated to move the drill strings out of the predetermined central zone and into a final centrally oriented zone in the bore through the blowout preventer regardless of the position of the drill strings in the central zone.