This picture shows an amateur receiving station circa 1917.  There appear to be two complete receivers.  One consists of a tuning coil to the right, what might be a crystal detector on a white porcelain base, and the pair of headphones hanging on the backboard at the top right. 

The second receiver is slightly more advanced, and consists of a loose coupler at the left rear, a crystal detector on a black base (a Bunnell "Jove"), and the  pair of headphones at the left.  Between the two coils is a phone condenser mounted in a black Bakelite housing.

There are several knife switches mounted on the backboard, with integral fuse holders (note the warning sign).  These must have been for a transmitter but there are no transmitter components visible in the picture.  Those may be located elsewhere, though the transmitting key would surely have been located on this table.  It's possible that this picture was taken during the WW-I period in which all amateur radio activity had been banned by the U.S. government, and the transmitter may have been dismantled.

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I believe this photo was taken at Princeton University, circa 1915.  Unfortunately, the quality is very poor, but it shows a classroom demonstration setup with a radio receiver at the left and, possibly, a transmitter at the right.

The large box at the front left is a variable condenser.  Behind it is a very large loose coupler which would have been suitable for a long wavelength reception.  On the shelf above the loose coupler are three crystal detectors.  The two on the left are mounted on marble bases.  They appear to be almost identical, and may have been made or sold by the J. J. Duck company.  The one on the right is on a Bakelite or hard rubber base, as yet unidentified.

The apparatus at the right is harder to discern.  Mounted on a board at the far right is a telegraph key, and to its left may be a sounder.  Behind it are three upright cylindrical objects which can't be identified.  They could be batteries, but no markings are visible.  They could also be coils, perhaps part of a low power transmitter.  Toward the front of the table is what looks like an enclosed variable capacitor typical of those made by Murdock or Clapp-Eastham.  Hanging from the right side of the table are two pairs of headphone.

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The station in the photo is that of David Asbury, 3ADT, of Oak Lane, PA (a section of Philadelphia).

Several pieces of equipment may be identified.  To the very right (on the table) is a Westinghouse RA/DA receiver, and to the left of the operator is a homebrew transmitter.  Just above his head are two horn speakers.  The small one on the right is an Arkay, and to the left is a large homebrew horn.

Behind the Arkay horn is another receiver, probably homebrew, using plug-in honeycomb coils (resembling donuts) in sets of three.  These coils were probably made by DeForest.  Additional coils are stored on top.

On the wall is a Murdock antenna switch (click and scroll down), and power transformers for the transmitter.   

The transmitter appears to have no support under it and the cloth covering the table would have make operations difficult, so this must have been a temporary arrangement so the photograph could be taken.  As it appeared in the magazine, the open area under the transmitter was darkened so it wouldn't look like it was floating on air.

W8KWU-1936-All equipment appears homebrew.

W8NEU-1938-The receiver is a Hallicrafters SX-16.

W3ERD-1938

W8NFO-1935