Fundamental Concepts:
The science of chemistry
Basic definitions: elements, compounds, mixtures
Laws of chemical combination
Valency and chemical formulas
States of matter
Inorganic Elements and Their Compounds (Descriptive Chemistry):

Non-metals:
Oxygen, Hydrogen, Water
Halogens (Chlorine, Fluorine, Bromine, Iodine) and their compounds
Nitrogen and its compounds (ammonia, oxides)
Sulfur and its compounds
Phosphorus and its compounds
Carbon and its inorganic compounds (carbonates, oxides)

Metals:
Alkali metals (Sodium, Potassium)
Alkaline earth metals (Calcium, Magnesium)
Aluminum
Heavy metals (Iron, Copper, Zinc, Lead, Mercury, Silver, Gold, Platinum, etc.)
Their occurrence, preparation, properties, and important compounds.
Basic Chemical Reactions:

Acids, bases, and salts
Oxidation and reduction
Solubility and precipitation

It would have been a standard text for introducing students to the elements, their properties, reactions, and the fundamental laws governing chemical combinations, particularly in the inorganic realm. Given the time of its publication, it would likely emphasize descriptive chemistry, atomic theory as understood then, and the classification of elements. It might also delve into the early understanding of chemical bonding and the nascent field of physical chemistry as it applied to inorganic systems.