146 J. HOPKINSON 



down in Southwark, a chimney in Leadenhall street, and another 

 in BiUiter Sqiiare, several chimneys and part of a house near 

 Horslydown. " On enquiry we find that tlie shock was felt at 

 Deptford, and Greemvich to Ch'avesend, at Dagnams and Paynes- 

 bridge* between Romford and Brentwood, at Coopersale, near 

 Epping, at Woodford, Walthamstoiv, Hertford, Highgate, Finchley, 

 — not at Barnet ; just perceived at Richmond in Surrey, Bromley 

 in Kent, not at Deal, or Canterhury : the news mentions it at 

 Calais, and in Italy.''' 



The ' London Magazine,' in mentioning Hertford, adds that 

 the shock " was felt very much there ; " and the ' Scots 

 Magazine ' adds that " the air was remarkably hazy and warm 

 at the time." 



In a communication to the Royal Society, Dr. James Parsons 

 stated that the shock was felt " at Stanmore, but not at Watford 

 6 miles further." 



19th March, 1750. 



The second of these two London earthquakes was more local 

 but more violent and prolonged. It appears to have been 

 confined to London and its neighbourhood so far south as 

 Epsom, and to the Lea Valley. There were three or four 

 shocks at wide intervals between midnight and 9 a.m., and it 

 was the last of these which affected Hertfordshire. At 5.40 a.m., 

 in the space of from 4 to 12 seconds, there were several con- 

 secutive shocks, preceded by a loud noise compared by some to 

 thunder, by others to the roaring of the wind, and heard by 

 some where no shock was felt. A black cloud with continual 

 and confused flashes of Hghtuing had been visible, the latter 

 ceasing a minute or two before the earthquake. Chimneys were 

 thrown down in London and houses were injured. (Mallet, in 

 ' Rep. Brit. Assoc' for 1852.) 



The following are extracts from the ' Gentleman's Magazine ' 

 giving an account of this earthquake : — 



" This morning, at half an hour after five o'clock, the town 

 was again alarmed with another shock of an earthquake, which 

 is generally allowed to be more violent, and of longer con- 

 tinuance than that felt this day month; ... In St. James's 

 Park, and all the open places, the ground moved very perceptibly, 

 and the noise seemed to break three times. About five o'clock, 

 was a continual, tho' confus'd lightning, till within a minute or 

 two of the shock being felt. . . . The dogs were sensible of 

 it ; and some of them howl'd in an uncommon manner, and fish 

 jump'd half a yard above water. 



" The shock was felt at Cheshunt, Hertford, Ware, Copthall 

 near (not at) Epping, Beckenliam in Kent.'' 



A later account, by " a Member of the Royal Academy of 

 Berlin," gives additional information : 



• " Another shock was felt hero, half an hour after the first." 



