This collection consists of the personal correspondence of Dr Henry Ellis and prescription books, daybooks and letters patent relating to the apothecary business he ran in Bangor with his son Dr Ellis Henry Ellis.
Prescription books (reference numbers: 606-611) range from 1867 to 1882 and give names of patients, type of illnesses and diseases, medicines and charges etc. Letters (9810-9858) are from Dr Henry Ellis to his wife, Anne Ellis, and with the exception of two are addressed from Dublin between August 1850 and April 1851 while he was taking a course in midwifery at a hospital there. The letters are mainly concerned with news of home and the Bangor shop, such as the ordering of goods (including tobacco and gunpowder!), staff problems and payment of bills etc. Two letters (9839 and 9840)are written from London and mention the Great Exhibition of 1851 and describe some of the exhibits at the British Museum.
Also contains two letters patent (dated 1862 and 1865) with Great Seal attached, granting Dr Henry Ellis licence and authority to "exercise and vend" an invention for improvements in the manufacture of silica compounds in the production of glazing compounds and dyes.