ON THE
FOLLOWING SUBJECTS;
| 1. | On the preparation, calcination, and medicinal uses of MagnesiaAlba. | 4. | On Various Absorbents, as promoting or retardingputrefaction. |
| 2. | On the Solvent Qualities of Calcined Magnesia. | 5. | On the comparative Antiseptic Powers of Vegetable Infusionsprepared with Lime, &c. |
| 3. | On the variety in the Solvent Powers of Quick-Lime, whenused in different quantities. | 6. | On the Sweetening Properties of Fixed Air. |
BY
THOMAS HENRY, Apothecary.
Utut tamen se res habeat, ego bona saltem fidetradam quæ hactenus rescivi omnia.
Sydenham.
LONDON:
Printed for Joseph Johnson, No. 72,
St. Paul's Church-Yard.
MDCCLXXIII.
TO
Thomas Percival, M.D.F.R.S. & S.A.
Dear Sir,
WHEN I reflect how much the friendship with which you have favouredme has contributed to my happiness; that from you has been imbibeda considerable share of the small taste I possess for experimentalinquiries; and[Pg iv] that to your skilful and affectionate treatment I amgreatly indebted even for the health I enjoy; it is impossible tohesitate a moment in the choice of a patron: gratitude and esteemdirect me to inscribe this Treatise to you, and I chearfully obey theirdictates. If to these any additional motive had been wanting, I shouldhave received it from your having been an evidence to the result ofmany of the experi[Pg v]ments related in the following pages.
That your own health may long enable you to continue exemplarily usefulto your friends and to the public, is the sincere and ardent wish of,
Dear Sir,
Your truly affectionate
and very humble Servant,
Thomas Henry.
Manchester,
18th Jan. 1773.
A RIGHT composition of the several articles used in medicine, is of somuch importance to the practice of it, that every attempt to improveor ascertain the method of preparing them, cannot fail of a candidreception from the public.
Though great advancement has been made within these few[Pg viii] years