After another day devoted to rest and recovery，the expedition proceeded upon its way.Some days later it went into camp in a pleasant part of the plain，and the savants sallied forth to see what they might find.Their reward was at hand.Professor Bull Frog discovered a strange tree，and called his comrades.They inspected it with profound interest.It was very tall and straight，and wholly devoid of bark，limbs，or foliage.By triangulation Lord Longlegs determined its altitude；Herr Spider measured its circumference at the base and computed the circumference at its top by a mathematical demonstration based upon the warrant furnished by the uniform degree of its taper upward.It was considered a very extraordinary find；and since it was a tree of hitherto unknown species，Professor Woodlouse gave it a name of a learned sound，being none other than that of Professor Bull Frog translated into the ancient Mastodon language，for it had always been the custom with discoverers to perpetuate their names and honor themselves by this sort of connection with their discoveries.
Now Professor Field-Mouse having placed his sensitive ear to the tree，detected a rich，harmonious sound issuing from it.This surprising thing was tested and enjoyed by each scholar in turn，and great was the gladness and astonishment of all.Professor Woodlouse was requested to add to and extend the tree's name so as to make it suggest the musical quality it possessed—which he did，furnishing the addition Anthem Singer，done into the Mastodon tongue.
By this time Professor Snail was making some telescopic inspections.He discovered a great number of these trees，extending in a single rank，with wide intervals between，as far as his instrument would carry，both southward and northward.He also presently discovered that all these trees were bound together，near their tops，by fourteen great ropes，one above another，which ropes were continuous，from tree to tree，as far as his vision could reach.This was surprising.Chief Engineer Spider ran aloft and soon reported that these ropes were simply a web hung there by some colossal member of his own species，for he could see its prey dangling here and there from the strands，in the shape of mighty shreds and rags that had a woven look about their texture and were no doubt the discarded skins of prodigious insects which had been caught and eaten.And then he ran along one of the ropes to make a closer inspection，but felt a smart sudden burn on the soles of his feet，accompanied by a paralyzing shock，wherefore he let go and swung himself to the earth by a thread of his own spinning，and advised all to hurry at once to camp，lest the monster should appear and get as much interested in the savants as they were in him and his works.So they departed with speed，making notes about the gigantic web as they went.And that evening the naturalist of the expedition built a beautiful model of the colossal spider，having no need to see it in order to do this，because he had picked up a fragment of its vertebrby the tree，and so knew exactly what the creature looked like and what its habits and its preferences were by this simple evidence alone.He built it with a tail，teeth，fourteen legs，and a snout，and said it ate grass，cattle，pebbles，and dirt with equal enthusiasm.This animal was regarded as a very precious addition to science.It was hoped a dead one might be found to stuff.Professor Woodlouse thought that he and his brother scholars，by lying hid and being quiet，might maybe catch a live one.He was advised to try it.Which was all the attention that was paid to his suggestion.The conference ended with the naming the monster after the naturalist，since he，after God，had created it.
“And improved it，mayhap，”muttered the Tumble-Bug，who was intruding again，according to his idle custom and his unappeasable curiosity.
Part SecondHow the Animals of the Wood Completed Their Scientific Labors
A week later the expedition camped in the midst of a collection of wonderful curiosities.These were a sort of vast caverns of stone that rose singly and in bunches out of the plain by the side of the river which they had first seen when they emerged from the forest.These caverns stood in long，straight rows on opposite sides of broad aisles that were bordered with single ranks of trees.The summit of each cavern sloped sharply both ways.Several horizontal rows of great square holes，obstructed by a thin，shiny，transparent substance，pierced the frontage of each cavern.Inside were caverns within caverns；and one might ascend and visit these minor compartments by means of curious winding ways consisting of continuous regular terraces raised one above another.There were many huge，shapeless objects in each compartment which were considered to have been living creatures at one time，though now the thin brown skin was shrunken and loose，and rattled when disturbed.Spiders were here in great number，and their cobwebs，stretched in all directions and wreathing the great skinny dead together，were a pleasant spectacle，since they inspired with life and wholesome cheer a scene which would otherwise have brought to the mind only a sense of forsakenness and desolation.Information was sought of these spiders，but in vain.They were of a different nationality from those with the expedition，and their language seemed but a musical，meaningless jargon.They were a timid，gentle race，but ignorant，and heathenish worshipers of unknown gods.The expedition detailed a great detachment of missionaries to teach them the true religion，and in a week's time a precious work had been wrought among those darkened creatures，not three families being by that time at peace with each other or having a settled belief in any system of religion whatever.This encouraged the expedition to establish a colony of missionaries there permanently，that the work of grace might go on.
