I can certainly remember ‘Elementary Calculations in CHEMISTRY’ by J.C. Mathews and was delighted to get hold of a copy.

Chapters were:

• I – Molecular Weight and Percentage Composition
• II – Formulae from Composition
• III – Reacting weights
• IV – Boyle’s and Charles’ Laws
• V – Gram Molecular Volume
• VI – Reacting Volumes of Gases
• VII – Vapour Density and Molecular Weights
• VIII – Diffusion of Gases
• IX – Equivalent Weights of Elements
• X – Atomic Weights
• XI – The Law of Multiple Proportions
• XII – Equivalent Weights of Acids and Bases
• XIII – Volumetriv Analysis
• XIV – Electrolysis
• XV – Solubility
• XVI – Revision Exercises 1,2,3

Obligingly, this being well before the introduction of the electronic calculator, at the back of the book were Logarithm and Anti-Logarithm tables!

The following page extracts provide a tantilizing glimpse into the past; somehow, they don’t seem to be anything like as fearsome as they seemed at the time…