50 
shows a similar rapid fall, previously, of 0’15 inches in two 
hours. The wedge-shaped rise is only 0‘02 inch, followed by a 
fall as rapid as before for nearly an hour. Then comes the 
sudden rise which marks the passing by of the secondary 
depression, followed by a further gentle fall. 
The St. Louis, Missouri, record, of a tornado in January, 
shows the same rapid fall, hut the upward jerk, of O il inch, 
is vertical, followed, without any previous rapid descent, by a 
gentle fall of 0'02 in two hours. 
But, in the Owenshorough tracing, there is a fall aiid rise, 
absolutely vertical, of rather over OT inch, followed by a 
further upward curve of nearly 0-02 inch, before the succeeding 
gentle fall. Both these, also, show signs of a rise about 1^ 
hours later than the jerk, but the cuts cease at this point. 
Since the above photographs were made I have received, 
through the kindness of T. W. Backhouse, F.E.A.S., of 
Sunderland, and E. B. Mounsey, Esq., of Darlington, a second 
aneroidogram, made during a ‘ whirlwind.’ The instrument 
was at the latter’s house, Ashhurne, Seaton Carew, a suburb of 
Sunderland. 
About 7-30 a.m. on August 15th last a ‘whirlwind’ passed 
along Church Street, 230 yards to the south. It was stated to 
have moved from W. to E. Three holes, each about two yards 
in diameter, were made in the roofs on the south side. The 
roofs were of black tiles, but as the repairs are in red, the places 
are conspicuous! It had blown down a tree before Church 
Street, and afterwards went out ‘ to sea, raising the water. 
Mr. Mounsey writes : “ The Postmaster was in his little garden 
behind the shop, and two flowerpots, with plants in them, 
manifested a desire to fly over the wall, but did not succeed. 
Mr. Noddings, the joiner, saio the tiles flying upwards eight or 
Fi§:. 6. 
SEATON CAREW. 
