The slide analysis system includes a slide holding module spaced from an incubator module. A slide transfer device or pick and place mechanism withdraws slides from the slide holding module and inserts them into the incubator module. A metering device deposits serum onto a slide that is held in a spotting position by the slide transfer device. The metering device is movable to a sampling position in the slide holding module to aspirate serum from a serum source on the slide cartridge in the slide holding module and is also movable to a spotting position to spot serum on the slide held by the slide transfer device. The slide transfer device has rotational as well as transverse movement and includes jaws for gripping onto the sides of slides to withdraw a single slide from a cartridge, transport it to the incubator, insert the slide in the incubator and thereafter remove it from the incubator. The metering device also has rotational as well as elevational movement and includes a built-in pipette tip ejector for discarding a used pipette tip.