266 Rotary Action of the Providence? 
From a point on the rocky “ledge” north He ol road 
and nearly three miles westerly from Providence, to the house of 
John Burr on the Cranston road, a distance of about one anda 
quarter miles, I found the course of the tornado to have been 8. 
86° E. by compass, over a plain country.. The magnetic varia- 
tion being here about 8° westerly, makes the true course E. 3° 
N. From this point to Providence river, a distance of about two 
miles, the course was five degrees more northerly. 
I agree with Dr. Hare that the general effects observed on this 
track were “quite similar” to those of the New Brunswick tor- 
nado ; and will give such of my sketches, formerly prepared, as 
will best illustrate this similarity and the general effects here 
mentioned. 
The following is a sketch of some of the effects on the farm 
of Mr. Burr: His house is about one mile and a half from the 
Providence brid . 
In this figure, a ines sents a Fig. 1. Providence Tornado” 
wooden dwelling-house of two 
‘stories with chimney atitscen- “\ 
‘ter: ba dwelling added to a and 54 i 
‘extending to the rear: ¢ a light- s, 
er building about 16 feet by 30, 
to the rear of b: g was 
a large wooden barn: Aa long 
building or shed extending from 
e barn to the carriage-hou 
The width of the visible woe 
peared to have passed somewhat 
diagonally over the three first 
named buildings. of 
The house a withstood the shock, receiving some .e damage ; the chimney top © 
b was thrown on the roof of a, perforatin the same, while 6 was enn oy 
upper part rt of th the house b from a northwesterly direction, The building c im 
about, a 
wind, against the top of the prostrated pear pr. fven _ and was there overturned Up® 
2 There were twenty one persons in @ and b, including a sch ool 1 of ehildrem 
: of whom were seriously injured, 
De RO 
Pin the large dot at me end of the several short lines, pee § - 
e€ rot ; the or ted end of thie line BhoW™ 
