DEVAS 

 EARTH and WATER 

 AIR and FIRE 

Agnishvattas -Ruled by Agni -are the builders on the fifth or gaseous subplane of the Cosmic physical & from the human stand point - are the most profoundly important, for they are the builders of the body of consciousness per se. Cosmic Fire Page 635
The work of the Agnishvattas(the self conscious priciple, the Builders or constructors of the egoic body on the higher mental planes) is to unite the three higher principles - atma, buddhi, manas - the lower three & thus become in very truth the middle principle in man. They themselves originate from the logoic middle principle...
6.The individuality of those existences whom we call:
a. Agnishvattas
b. Manasa devas
c. Fire dhyanis
d. Solar angels or solar Pritis
e.The Asuras
Much confusion exists in the minds of students as to the distinction between the Agnishvattas who incarnated in man & those who simply were responsible for the implanting of the manasic or mental spark in animal man... Cosmic Fire pages 681-683
The heart circulates vitality to the myriads of cells that constitute the dense physical sheath; something analogous is seen in the fact that these fire devas are " the Heart of the Dhyan chohanic body" for their energy comes from the spiritual sun in the same sense that the energy of the pranic devas of the etheric body comes from the physical sun. Cosmic Fire page 684

Agnisuryan- Ruled By Varuna, Lord of the Astral Plane- exist on the 6TH subplane of the cosmic physical. They represent the sympathetic nervous system in the logic physical body. They have to do with the nerve plexus in the solar system (Physical Sun), planetary scheme(dense planet) & the human physical body. They are therefore a powerful factor in the eventual vitalisation of the centres in man. These devas are the builders of the body of consciousness per se.They have a close connection with the physical brain.
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Agnichaitan- Ruled by Kshiti- Lord of the physical plane - Cosmic Fire page 634
These are the devas who construct & build in matter of the denest kind in connection with logoic manifestation. They function on the seventh subplane of the cosmic physical plane & are the producers of the greatest concretion. In the planetary body of our planetary Logos, they are the builders of the earth, his densest form & throughout the entire solar system they are the sumtotal of that activity & vibration which demonstrates through what we call solid matter.