These two letters to Lady Burlington are written by Laura Blood on the topic of a herb.
In the first letter Laura Blood describes how she had hoped to make a herb available to the Queen which has healing properties. She explains that she had a dream whereby she was told by a young man (who was possibly Lord Burlington's relative) to offer the herb to Lady Burlington to help her not to miscarry her sons and that is why she has written to instruct Lady Burlington to keep the herb with her at all times, whilst she is pregnant, until she delivers. She adds that the Earl of Cork was her grandfather's great friend and had a great school under his Lordship's patronage in Lismore and that Doctor Salmon has given his commendation for the herb. She mentions that Mr Croty might have heard of the school in Lismore and that Mr Croty knew her father.
In her second letter she writes more about the herb and believes its English name to be wild marjoram and explains that she has used it in her own family as well as knowing an old woman in Ireland who had a good reputation for her cures and using it in a tea. She acknowleges she does not know why it helps "fruitfulness" and the skeptism of the gentry who prefer to "physicians tampering". She explains how the herb was taken by those wishing to conceive and encloses some of the dried herb which can be acquired from the Covent Garden.