Among the lowest vertebrate

Among the lowest vertebrate often found in numbers in early spring in these meadow rills and brooks is the lamprey, _Ammocoetes_branchialis_ (L.), or "lamper eel," as it is sometimes called. It has a slender eel-like body, of a uniform leaden or blackish color, and with seven purse-shaped gill openings on each side.

The mouth is fitted for sucking rather than biting, and with it they attach themselves to the bodies of fishes and feed on their flesh, which they scrape off with their rasp-like teeth. Later in the season they disappear from these smaller streams, probably returning in midsummer to deeper water. Thoreau, who studied their habits closely, says of them: "They are rarely seen on their way down stream, and it is thought by fishermen that they never return, but waste away and die, clinging to rocks and stumps of trees for an indefinite period; a tragic feature to the scenery of the river bottoms worthy to be remembered with Shakespeare's description of the sea floor.

Limp and helpless it
In many of their
The instinct of cleanliness
Sometimes too colubers are
I was able to
It would be folly
Again if we compare
And yet it is
The instant he found
5 Key to North
What surprised me was
Herbert Smith This case
Among the lowest vertebrate
Motionless for months they
The world as men
When he came back
Nor did he once
In such a manner
Fling me in some
The spider does not
which they resemble in
A lady friend once
The nest which contained
It is a medium
They walk erect with
I have already alluded
Illustration WHAT WORMS DO
These Bats distinguished generally
A deadly epidemic or
To this class belongs
Some square holes were
The bird goes in
While among beetles and
What does that imply
Illustration Old Rattler was
The large flocks of
No such thing till
This member in the
the Sharp shinned and
Not however for long
The rough winged swallow
For the crystal of
The natural position is
The surface of the
Savage I give it
Suddenly to use Mr
We have seen in
Bright colored spiders either
But by and by
For example the little
The explanation of the
The eggs three in
Brewer had ever seen
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I should never have
In an open winter
The method employed by
In this latter view
As soon as the
Illustration LEAF CUTTING ANTS
Its form and color
Ants and especially the
Of one of the
I observed that one
The legs formed of
I said to myself
They are typical examples
e a quart of caterpillars
Under high trees in
Five and a half
This was no ordinary
His coat was smooth
Weissmann from which most
There he rests quietly
Like the warblers they
These wretched little beasts
Illustration HEAD OF CHIMPANZEE
It might at first
Still making every allowance
The spawn hatches out
The Thrushes Solitaires Bluebirds
After we had kept
It was the female
The most remarkable feature
Like their horse headed
Professor Coulter was the
These animals also escape
After all has been
Five of this form
Among the curious forms
The toads are with
In the case of
There are even instances
The higher reason and
Twice she dropped it
Might it not thus
It was surprising how
Hundreds of blob live
But the mightiest cataract
Illustration FIG 3 RED
At the other end
First those that repair
Illustration THE CONDOR FROM
After eight days the
The entrance to the
Whatever he may be
A little dent is
The second method is
For nearly an hour
It is an advantage
The analogy of the
The cattle which were
The organs of smell
Thus in the Eyed
ERNEST THOMPSON SETON Artist
The stately observant way
I cut into this
In the third stage
The walls were quite
In much the same
If he follows this
In short it sits
She then spent a
The only sounds of
After about forty eight
He is a certain
Was born in Canada
During eight months of
Those fishes which live
At the end of
The little blood sucking
It generally lives in
In pursuit of these
Since the majority of
The approach to this
The nest was composed
Dr Savage s observations
The blue jay now
Illustration WORKER Illustration DRONE
I could not help
I do not like
The period of this
Possessing an enduring power
Among these is a
familiaris and S pulex
They consist of a
Illustration THE VAMPIRE BAT
The other chrysalis was
An Orang climbs so
S s we shall
When a colony of
The germ contained in
In fact we may
When the nest is
II THE LONG EARED
The animal therefore is
Being a timid little
BY SIR A R
I have often found
Beneath this layer and
Another pair of blue
The fermentation of these
The first specimen I
Till they are big
Owen s paper was
2dly That it may
One pulled one way
Caterpillars and beetles belonging
A single cod for
To this one might
When we wished to
Many of the cases
It is this habit
Three small seed pods
But it is nothing
I give Forbes s
And among these were
Those little colts with
But this is the
I thought it had
In the next stage
The waves generously rise
This latter number of
They are armed against
One day sitting on
The hard black lava
For in the first
Brook Brook said Bevis
Illustration THIRTEEN SPOTTED LADY
6 Their brilliant colors
The VERY REV GEORGE
The other three types
In any case we
It has been well
The next point is
After having carefully scanned
One I have lately
3 BY JOHN BURROUGHS
When they find themselves
The ears are minute
I must now call
But the thoughts suggested
In another part of
The wax which is
Within this snug retreat
How do they contrive
The Orang cannot put
Dr Salomon Muller an
But the wren screamed
In England on the
The cow fish feeds
The workers appear to
Standing there I looked
W and E G
Some even enter cultivated
Somewhat different evidence however
When I come over
The ear contains a
The Orang never stands
Time went on The
But higher life is
Second Stage Illustration FIG
Close to one of
BRUNER L American professor
There are however not
The great Eastern Fruit
But even this bird
Thus among the British
A hole was dug
On approaching nearer a
This proposition is well
The modification of form
In another experiment the
As all the spiders
In other respects perhaps
In the broad pampas
The Desmodonts as these
Illustration THE DARTMOOR PONIES
I then threw it
Intermediate forms are found
In the trees that
In this respect the
Thus then the individual
I have no doubt