was created and changes to the GatewayClass or associated parameters are not
          propagated down to existing Gateways. This recommendation is intended to
          limit the blast radius of changes to GatewayClass or associated parameters.
          If implementations choose to propagate GatewayClass changes to existing
          Gateways, that MUST be clearly documented by the implementation.

2BBA..2BBC    ; valid                  ;      ; NV8    # 11.0 OVERLAPPING WHITE SQUARES..OVERLAPPING BLACK SQUARES
2BBD..2BC8    ; valid                  ;      ; NV8    # 7.0  BALLOT BOX WITH LIGHT X..BLACK MEDIUM RIGHT-POINTING TRIANGLE CENTRED
2BC9          ; valid                  ;      ; NV8    # 12.0 NEPTUNE FORM TWO

Ebullition and a gentle Heat; and where it is quicker, it makes a
greater Ebullition with more heat; and where it is done at once, the
Ebullition is contracted into a sudden Blast or violent Explosion, with
a heat equal to that of Fire and Flame. So when a Drachm of the
above-mention'd compound Spirit of Nitre was poured upon half a Drachm