Weather map map using his own system of symbols, thereby creating the world's first weather map. He used his map to prove that air circulated clockwise around areas of high pressure; he coined the term 'anticyclone' to describe the phenomenon. He was also instrumental in publishing the first weather map in a newspaper, for which he modified the pantograph (an instrument for copying drawings) to inscribe the map onto printing blocks. "The Times" began printing weather maps using these methods with data from the Meteorological Office. The introduction of country-wide weather maps required the existence of national telegraph networks so that data
Methods used to study memory Pertaining to the study of memory, areas of interest include the hippocampus, the rhinal cortex, the pre-frontal cortex, and the frontal cortex. The neurotoxic lesion technique uses neurotoxins such as ibotenic acid to selectively disrupt or kill specific neural tracts in any of the areas described above. The animal is anaesthetized and immobilized so that stereotaxic instruments can be used to drill holes in specific locations of the skull. Scientists can then carefully administer microinjections of neurotoxins to damage only the neurons in specific brain areas. This technique allows for the selective lesioning of areas of interest and leaves surrounding