190 A Twenty-Fifth Memoir on the Law of Storms. [No. 2. 



been blown away and had to shore up all the doors and windows S. 

 West to prevent them being blown in. 



The trade of the Pluto's Cyclone. 



The foregoing comprises all that I have been able to collect in 

 the way of documents I now proceed to say on what grounds I have 

 laid down the track of this Cyclone. 



We find that unfortunately the wind is only marked once at 11 

 p. m. of the 21st (civil time), throughout the Aratoon Apcar's log 

 of the 22nd, which is kept in Nautical time, but that throughout the 

 21st she had unsteady winds varying as to force from calm at sun- 

 set to strong breezes at 8 p.m.; then moderate again with gloomy 

 threatening weather at midnight, and at 4 A. m. on the 22nd fresh 

 breezes ; but during the whole of the 21st, she had the sea even 

 during the calm at suuset very turbulent and breaking in all direc- 

 tions. We may then fairly suppose that she was with this sea in 

 some part of the wake of the Cyclone, and her falling barometer 

 from Noon of the 22nd would seem to indicate that her N. 

 Westerly course was bringing her within the true Cyclone circle. 



We have only at 1 p. m. on the 22nd the wind marked " Souther- 

 ly" and at 7 a. m. on the 23rd it is marked as S. W., so that as it 

 was blowing a hard gale from midnight we may fairly say that at 

 midnight 22nd — 23rd she had run into the Cyclone on its S. Easter- 

 ly quadrant, and from thence if we take the wind to have been veer- 

 ing gradually that it may have been about S. W. b. S with her at 

 that time, or perhaps even S. S. W., either of which estimates would 

 place the centre of a Cyclone to the E. N. E. of her, or somewhere 

 about Barren Island, and vague as this is, I have so marked it for 

 midnight in the Chart for the sake of reference, for, as will be pre- 

 sently seen, the distance is so great that it is impossible to consider 

 this gale and the Pluto's Cyclone as the same circular storm. 



On the 23rd from midnight up to Noon we find that the Aratoon 

 Apcar had the weather very severe and the sea is described as awful. 

 After Noon in this day it appears to have moderated rapidly, but 

 the wind is again most carelessly marked as " Westerly," and we 

 cannot hence pronounce with any degree of certainty that her gale 

 was a Cyclone at all or a mere setting in of the S. W. monsoon. 



Eor it will be seen by the Charts that from the centre, which we 



