Sub-subseries consists of manuscript essays and addresses on scientific subjects falling into four categories: (1) popular lectures, not only on geology, but also on biology, entomology, physics, archaeology and even linguistics; (2) mining, particularly of Nova Scotia coal, with some reports and maps; (3) geology, largely of Nova Scotia, and (4) palaeontology (approximately 72 cm). Some of the materials in sub-subseries are drafts of works later published, and these papers also contain 80 cm of Dawson's printed books and articles.

Sub-sub-series consists of ten files of grants applications or requests of funds to finance the computerization project. Includes correspondence, drafts, budget, projects, notes, grants applications, statement of receipts and disbursements, memorandums.

Sub-subseries pertains to the operation of myocardial revascularization (Vineberg Procedure) made on an experimental basis and on human. It contains surgery ledgers, pre and post-operative instructions, list of patients who had surgery (records for the year), follow-up questionnaires sent to patients and records of patients on specific treatment as Kaopectate and the ones who had Ivalon sponge. Files are in alphabetical order of original titles. Includes lists, questionnaires sent to patients, surgery ledgers on animals and human, and preoperative and post operative instruction.

The sub-sub-series contains three ledgers of incomes with supporting documents and deposit slips.
The files are arranged in chronological order.

The Comic Valentines sub-subseries contains 55 cards printed on cheap paper and are typically hand-coloured. The Comic Valentines sub-subseries consists of single-page greeting cards with woodcut images representing several stereotypes, usually poking fun at someone’s profession or appearance. They typically contain a woodcut caricature of the recipient and a short and usually offensive poem. Comic valentines, sometimes referred to insult valentines or vinegar valentines, were given to either poke fun at a friend or to offend someone who was very disliked. People who received these types of cards rarely kept them, therefore all the comic valentines featured in this series are blank and like stationer’s stock.