Sir Herbert John Clifford Grierson (1866-1960) was a renowned Scottish literary critic and editor who specialised in Metaphysical and Romantic poetry. Originally published in 1937, this book was formed from the content of a series of lectures delivered at University College London during the spring of 1936. The main focus of the text is on the 'prophetic poetry' of Milton, with some discussion of Wordsworth's intuitional approach by way of contrast with Milton's process of 'conscious deduction from his experiences'. This book will be of value to anyone with an interest in literary criticism and British poetry.