A method for temporary wafer bonding employs a curable adhesive composition and a degradation agent combined with the curable adhesive composition. The speculum comprises a handle having a frontal portion and a rear portion slidingly secured to the frontal portion. The inkjet ink set and an image forming method using the same provide preservation stability and secured excellent jetting ability of the ink composition, and an image having image quality with suppressed formation of satellite droplets. A lighting device may be positioned on or near the water dispensing unit to illuminate the water being dispensed therefrom. The nucleic acids can be labeled with at least 6 dyes, each having a unique peak emission wavelength. Also at least some of the outwardly extending fingers or projections of the transverse bars provide a means of entrainment of the crop or material being conveyedelevated.