Cloud atlas was published in 1802. It followed a similar effort in French by Jean-Baptiste Lamarck in 1801. Howard's nomenclature defined four fundamental types of clouds: cirrus or thread-cloud, cumulus or heap-cloud, stratus or flat cloud (level sheet), and nimbus or rain-cloud (see Classification of clouds). There followed a long period of development of the field of meteorology and the classification of clouds, leading up to 1896, the International Year of Clouds. The history of this period is the subject of a popular book, "The Invention of Clouds". During that time, the Englishmen Rev. Clement Ley and Hon. Ralph Abercromby, were influential.
Fear or provocation of violence level 5 on the standard scale, or both. Section 4(3) of the 1986 Act formerly provided that a constable could arrest without warrant anyone he reasonably suspected was committing this offence. This was repealed by section 174 of, and Part 2 of Schedule 17 to, the Serious Organised Crime and Police Act 2005. The Crime and Disorder Act 1998 (c.37) creates a label of "racially-aggravated" in its Section 28, Meaning of “racially aggravated”. It describes here what is indicated by the term "racially aggravated", and describes “racial group”: "means a group of persons defined by reference to race, colour, nationality