Petrography rock was affixed to a microscope slide and then ground so thin that light could be transmitted through mineral grains that otherwise appeared opaque. The position of adjoining grains was not disturbed, thus permitting analysis of rock texture. Thin section petrography became the standard method of rock study. Since textural details contribute greatly to knowledge of the sequence of crystallization of the various mineral constituents in a rock, petrography progressed into petrogenesis and ultimately into petrology. It was in Europe, principally in Germany, that petrography advanced in the last half of the nineteenth century. The macroscopic characters of rocks, those
The "What Time Is Love?" Story at the "Land Of Oz", the chill-out room of the London nightclub Heaven, where Paterson regularly DJed alongside The KLF co-founder Jimmy Cauty. The track was recorded on 31 July 1989, one week after a single release of further "What Time Is Love?" remixes. The date also marked the release of The KLF's pop single "Kylie Said to Jason". The "What Time Is Love?" Story The "What Time Is Love?" Story is a compilation album by British electronic music duo The KLF, comprising six versions of their techno track "What Time Is Love?". By 1989 (see 1989 in music), the