From The Crop Circle Ship Wiki
 Primary example
On the 1st of July 1991, a formation shows three different depictions of Water.
A single molecule of Water is made up of 1 Oxygen atom and 2 Hydrogen atoms. In a normal Water molecule, the Hydrogen atoms become attached to the Oxygen atom at about 105 degrees in relation to each other.
This angle is visible in the formation.
Two Hydrogen atoms (H) are shown above, as is the single Oxygen (O) atom.
In the crop circle formations, especially at Hampshire since about 1999, we have seen these two Hydrogen atoms represented frequently.
Remember that in the grey/white diagrams, the grey area is the flattened crop, and the white area is the standing crop. We can see this match in the formations above.
Objects B and C below, also appear likely to be two other depictions of Water.
Water, this formation was created on the same day as another. See the example on Hydrogen.
Appears to be related to the rechargers.
Entering the Octahedron.
 Also see