There is perhaps no journey in the world in which the past and what now is and the links between them stand out more clearly stratified than a journey up the Thames upon the tide from the Sea-reach to the Pool.

I will describe it; for it is upon a physical experience of this kind (I mean the seeing of history through the eye to the north and to the south of the narrowing river and the feel of the stream under one) that any historical essay upon the River of London must be built.

I have heard it said that the experience is a common one, seeing that so many thousand men of the articulate, travelled, and experienced class (who can relate their experience to some purpose) have entered London by river. Any one (I am told) who comes in from the East or from Holland to the docks will know what I mean. But I do not think this is so. I do not think that the thing seen rapidly from the decks of a liner, perhaps cut short at Tilbury, perhaps missed because the voyage is at night, is quite what I intend to emphasise. Nor am I certain that the proportion of those fifty miles is accurately seized when they are experienced from the height of some great steamer whence the strength and nature of the stream, its ebb and flow, its local life, are missed.

It is so with all other great ports. The myriads that come in nowadays to England by the Mersey have no opportunity for judging the estuary, the meaning of the opposing shores, nor that character of south Lancashire which lies before their eyes in the mist and is so singular a factor in the makeup of England.

I think that to know the River of London the journey must be made from the sea upwards, in something not larger than a barge, in a motor boat, or in a fishing vessel, or little half-rater, and taken upon one tide with an easterly wind, as all the men of the past took it, making the great port upstream under the weather they had chosen. In this way, with little freeboard between one’s feet and the changing level of the broad water, and with not too rapid a passage of the stations upon either bank, and with some true measure wherewith to gauge in detail what one sees, one can understand the river. It was in a progress such as this that the painters came to understand the Lower Thames, and nothing has nourished a more national art than this valley, though its interpreters have been rare.

You see five successive stages clearly marked in such a voyage.

You see, in the first place, that everything up to the very gates of London must have been, at the beginning of our history, as desolate as any province in Europe. The rare places at which high and firm land comes down to the modern stream are, as it were, isolated, and live a life upon the defensive. Nowhere (as we shall see when we come to examine London as a crossing place) does some good habitable site stretch down to either opposing bank. There is no natural gateway upon the Lower Thames; no twin villages defending a gap; nor the projection from the north as from the south of tongues of high land or even good arable land, the proximity of which, one to the other upon either shore, would give humanity to the river. All the miles of it are desolate marshes, either to the one side or to the other, most commonly upon both, and the few spots where an exceptional formation has given firm building ground and fertile fields as well close to the river have something about them exceptional and, as it were, beleaguered. It is a gross and an unhistorical exaggeration to say (as many of our academic people are saying) that all that valley was a flooded lagoon until historic times. It was not that. But it was a long succession of very wide, watery marshes, with knolls of slightly higher land standing up therein. Consider, for instance, the view to the northward, from the height just above and east of Dartford. There you have two good miles of what was marsh and still is largely marsh to the main stream, and beyond, upon the farther shore, another three or four miles of the same flats, with odd, exceptional rises at Rainham, at Aveney, or upon the edge of the flat of Upminster. It is the same from the Abbey Wood, east of Woolwich. Plumstead Marshes and Barking Level made one morass, four miles wide at least, or nearer five, drowned twice a day into a great level sheet of water, until some civilisation came to dyke up the tidal stream and confine it to the central bed, which it had scoured in its windings through such a desolation. Now of all that primitive effect of waste, abandoned places very much remains in such a journey as I have suggested. It is true that a wall of earth everywhere controls the flood to-day, and that the traveller in his boat does not see, as he would have seen two thousand years ago, the glint of water to the north and south at high tide over tufted grass and drowned banks of mud for miles upon either side of his going. But he still sees in so many places as to make them the chief note of the lower reaches, at least, great Flats without a soul upon them, unbroken by tree or house or hedge, and plainly saved by artifice alone from flooding. This run up the Lower Thames is, save for the exceptional approach of high land in one place or another (as at Gravesend or Erith) like a sail through the Fenland, and this character of desertion, silence, and morass, the oldest foundation of all, is still quite plainly the background of what one sees and remembers when one comes up the River of London to London from the sea.

So much, then, for the first layer.

The second should by right be Roman: but nothing Roman remains; no, nor anything of the Dark Ages. Unless we believe what is probable enough, but not proved in any way, that the great containing walls of earth (notably that round the Isle of Dogs) were Roman work, we can distinguish nothing in such a journey to mark the first thousand years of Christendom. Far out beyond the Sea-reach, Reculvers was a Roman station in the estuary, but the ways have eaten it away. No great monastic nucleus of the Dark Ages could be founded in that inhospitable land. There was no palace of the kings standing near the central stream until the neighbourhood of London was approached. There was not even a fortress. Indeed it is odd to think how empty all that approach from the sea to the greatest of the western Roman towns was and remained. It was not until the Middle Ages began to flower that the Lower Thames put forth any human signs—at least of such a sort as have come down to us. The remains of them are very few, but they are distinctive.

Of all that life of the Middle Ages which the English countrysides preserve in so many visible relics—and especially in a host of parish churches surpassing all of the kind in Europe—the Lower Thames has but one clear instance remaining to the eye; and that is the little isolated church of St. Clement’s. Rainham is too far from the water, the legends and associations surrounding the well of St. Chad are also too distant to count in the picture. The endowed foundations of religion either stood remote from the river-bank or have disappeared. London, but for the Great Fire, would have supplied in this the emptiness of the lower river.