1have occaſion to make uſe of them in my o
ther Writings: That in divers caſes I
thought it neceſſary to deliver things cir
cumſtantially, that the Perſon I addreſſed
them to, might without miſtake, and with
as little trouble as is poſsible, be able to re
peat ſuch unuſual Experiments: and that
after I conſented to let my Obſervations be
made publick, the moſt ordinary Reaſon of
my prolixity was, That foreſeeing that ſuch
a trouble as I met with in making thoſe try
als carefully, and the great expence of time
that they neceſſarily require, (not to mention
the charges of making the Engine, and im
ploying a man to manage it) will probably
keep moſt men from trying again theſe Ex
periments; I thought I might doe the gene
rality of my Readers no unacceptable pece
of ſervice, by ſo punctually relating what
I carefully obſerv'd, that they may look up
on theſe Narratives as ſtanding Records in
our new Pneumaticks, and need not reite
rate themſelves an Experiment to have as
diſtinct an Idea of it, as may ſuffice them
to ground their Reflections and Speculations
upon.
ther Writings: That in divers caſes I
thought it neceſſary to deliver things cir
cumſtantially, that the Perſon I addreſſed
them to, might without miſtake, and with
as little trouble as is poſsible, be able to re
peat ſuch unuſual Experiments: and that
after I conſented to let my Obſervations be
made publick, the moſt ordinary Reaſon of
my prolixity was, That foreſeeing that ſuch
a trouble as I met with in making thoſe try
als carefully, and the great expence of time
that they neceſſarily require, (not to mention
the charges of making the Engine, and im
ploying a man to manage it) will probably
keep moſt men from trying again theſe Ex
periments; I thought I might doe the gene
rality of my Readers no unacceptable pece
of ſervice, by ſo punctually relating what
I carefully obſerv'd, that they may look up
on theſe Narratives as ſtanding Records in
our new Pneumaticks, and need not reite
rate themſelves an Experiment to have as
diſtinct an Idea of it, as may ſuffice them
to ground their Reflections and Speculations
upon.