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relation, and therefore I prefume to add it to his accurate 
account. Fro«i which I differ only in what he fays cbn- 
cerning the part with which the ticking noile is made, 
which he fays ^ tie extreme edge of the Face^ which may 
he called the Vpper-lip. But I obferved the Infeft always 
to draw back its Mouth, and beat with its Forehead. 
The other Death-Watch^- is an Infefl: in appearance quite 
different from the laft 5 which I lately difcovered about 
the beginning of this July. The other Death-Watch beat- 
eth only about 7 or 8 ftrckes at a time^ ,and quicker: but 
this will beat fome hours together, without intermiffion $ 
and his ftrokes are more leifurely, and like the Beats of a 
Watch. I have feveral years obferved thefe two forts of 
Beating, but took it to be made by one and the fameAni-r^ 
nial. 
The InfeU which makes this long Beating, is a fmall/ 
greyifh Infed, much refembling a L<?///^, when looked or> 
only with the naked Eye. For which reafon (for want- 
of another name) I call it Pediculm Pulfatorius. It is ve- 
ry nimble in running to feek its fheker, when difturbed,. 
It is very common in all parts of the Houfe, in the Suhk 
mer months. 
They are extremely fny of Beating, when difturbed 5 
but will beat freely enough before you, and alfo anfwcr 
you when you beat,: if you can view them, without giving, 
them difturbance,:or (hakingthe place where they lye, &c.> 
I cannot tell whether they beat in any other thing, bur 
I have heard their noife only in, or near Paper. 
Concerning their Noife, I am fomewhat in doubt, whe-^ 
ther it be made by beating their Heads, or rather Snouts^ 
againftthe Paper : or whether it be not made after fome 
fuch manner, as Grafioppers and Crichts make their noife*. 
I rather incline to the former opinion. But my reafon of 
doubting is, becaufel have obferved the Animal's Body 
to (hake, or give afudden iirkat every ftroke^ but I could. • 
fcarce perceive any part of its Body to touch the Paper,-: 
'Tis pQffible it might beat the Paper, and I not perceive^ 
it, by reafon its Body is fmall^ and near the Paper when 
