Cross section of the body of a clam, through the posterior adductor muscles. Arrows indicate water current…
Young clam, still within the egg membrane. m, adductor muscle; t, hooks by which it attaches itself…
The razor shell clam has a shell somewhat resembling in shape and size the handle of a razor.
The perch is typical of a large group of fishes, all of which have spiny rays. The perch is widely distributed…
The vorticella is an interesting protozoan. It is found on submerged stems and leaves in stagnant water,…
In this simple sponge, water enters minute holes in the sides and passes out of the opening at the top…
If undisturbed, the body and tentacles may occasionally sway gently. If disturbed, a hydra usually shortens…
The common starfish is a five rayed star. The central body is called the disk and the arms are the rays.…
A genus of sessile cirripeds, family Balanidae, of which colonies are to be found on rocks at low water.
Tape-worms live parasitically within other animals, and are often spoken of as Entozoa. This is a single…
The mites form with the ticks the order Acarina, and are distinguished by the fact that the abdomen…
The gills in a lamprey are situated in a number of distinct sacs or pouches which recieve water from…
These wading birds mostly spend their time wading about in shallow water, feeding upon small fishes,…
A machine used for lifting water, thought to have been invented by Archimedes in egypt for draining…
A boring in the ground through which currents of water rise from various depths toward or above the…
The liquid barometer is an instrument used in measuring atmospheric pressure. The liquid barometer uses…
A fountain is an artificial basin containing water for drinking or other useful purposes, and connected…
First day's bombardment, Federal Schooners off Forts Jackson and St. Philip, commanding the passage…
Passage of the second division of the Federal Squadron past Fort St. Philip. On April 24, 1862 at three…
Simple Simon went a-fishing for to catch a whale. All the water he had got was in his mother's pail.
"[African American] drivers of the baggage train attached to General Pleasonton's Cavalry brigade watering…
"Infernal machine designed by the Confederates to destroy the Federal Flotilla in the Potomac discovered…
"Fire raft sent down from Fort Jackson to destroy the Federal fleet below the fort- the boats of the…
"First naval battle in Hampton Roads between the Confederate iron-plated steamers Merrimac, Yorktown,…
"Second naval battle in Hampton Roads- fight between the Federal ironclad Monitor, of two guns,…
"Occupation of Norfolk, VA., by the Federal troops- view of the city- Federal vessels at anchor." —Leslie,…
"Desperate naval combat between the Confederate iron-plated ram Arkansas and the Federal gunboat…
"Removing sunken schooners from Core Sound, N. C., placed to obstruct the passage of the Federal gunboats,…
"Encampment of the Federal army near Rolla, Mo. The city of Rolla has been famous since the death of…
"Reconnoissance of Warsaw Sound, December 5th, 1861, by a detachment of gunboats under Captain Rodgers,…
"Landing state prisoners at Fort Lafayette, New York harbor, in 1861. Fort Lafayette, New York harbor,…
"The Burnside Expedition- melancholy deaths of Colonel J. W. Allen, Surgeon Waller and the Second Mate…
"Camp Wool, two miles from Fort Clark, Hatteras Island, occupied by Hawkins's Zouaves, Ninth Regiment,…