What do you mean by 'scaling' a bulb?

Here's how SCALING works: A Lily bulb is comprised of tightly overlapping scales (food store-houses) which look very similar to a fresh artichoke in appearance and which store all the genetic data for "cloning", or growing, another identical bulb of, for instance, 'Star Step' or 'Black Dragon Clone'. Extra scales, not needed to feed the bulb for the current year are removed, incubated in a slightly damp medium to approximately 70 degrees F. for several weeks until pea-sized bulblets form. They are then refrigerated for four to six weeks to simulate winter and then planted into freshly prepared soil in late spring. In late October these bulblets are dug and stored in coolers over winter before being replanted in a permanent field for two to three more years of growth.