Interlocking block building construction

Claim 1

A BUILDING COMPRISING: A FOUNDATION HAVING FRONT AND REAR END WALLS AND LEFT AND RIGHT-HAND SIDE WALLS; A FIRST COURSE OF FLOOR SIDE BLOCKS ON ONE OF SAID SIDE WALLS, SAID COURSE INCLUDING BLOCKS EACH HAVING A VERTICAL DOVETAIL GROOVE IN ONE END AND A VERTICAL DOVETAIL FLANGE IN THE OTHER END AND A HORIZONTAL DOVETAIL FLANGE IN ONE SIDE AND PROJECTIONS IN THE UPPER SURFACE THEREOF, WITH THE DOVETAIL FLANGES IN THE ENDS THEREOF INTERLOCKING WITH THE DOVETAIL GROOVES IN THE ENDS OF ADJACENT BLOCKS; A PLURALITY OF SUPERIMPOSED COURSES OF SIDE WALL FORMING BLOCKS DISPOSED ON SAID FLOOR SIDE BLOCKS, EACH OF SAID SIDE WALL FORMING BLOCKS HAVING RECESSES IN THE UNDERSIDE THEREOF RECEIVING THE PROJECTIONS OF THE UPPER SURFACES OF THE NEXT LOWER COURSE OF BLOCKS AND EACH OF SAID SIDE WALL FORMING BLOCKS HAVING PROJECTIONS ON THE UPPER SURFACES THEREOF TO PROJECT INTO RECESSES OF BLOCKS IN THE NEXT HIGHER COURSE OF BLOCKS, AND EACH OF SAID SIDE WALL FORMING BLOCKS HAVING A VERTICAL DOVETAIL FLANGE IN ONE END THEREOF AND A VERTICAL DOVETAIL GROOVE IN THE OTHER END THEREOF, WITH EACH BLOCK IN A COURSE HAVING THE DOVETAIL FLANGE THEREOF RECEIVED BY THE DOVETAIL GROOVES OF AN ADJACENT BLOCK IN THE COURSE; AND A COURSE OF CEILING SIDE FORMING BLOCKS RECEIVED ON THE UPPER COURSE OF SIDE WALL FORMING BLOCKS, SAID CEILING SIDE FORMING BLOCKS HAVING RECESSES IN THE UNDERSIDE THEREOF TO RECEIVE THE PROJECTIONS ON THE UPPER SURFACES OF THE UPPER COURSE OF SIDE WALL FORMING BLOCKS, AND SAID CEILING SIDE FORMING BLOCKS HAVING ONE END WITH A VERTICAL DOVETAIL FLANGE IN SAID ONE END OF SAID CEILING FORMING BLOCKS AND ANOTHER END WITH A VERTICAL DOVETAIL GROOVE IN SAID ANOTHER END OF SAID CEILING FORMING BLOCKS, WITH THE DOVETAIL FLANGE OF AN ADJACENT BLOCK IN THE COURSE, EACH OF SAID CEILING SIDE FORMING BLOCKS HAVING AN INSIDE FACE AND A HORIZONTAL DOVETAIL FLANGE ON THE INSIDE FACE OF SAID CEILING SIDE FORMING BLOCKS; AND A FLOOR COMPRISING A PLURALITY OF COURSES OF FLOOR FORMING BLOCKS IN SIDE-BYSIDE RELATIONSHIP, SAID FLOOR FORMING BLOCKS HAVING A HORIZONTAL DOVETAIL GROOVE IN ONE SIDE THEREOF AND A HORIZONTAL DOVETAIL FLANGE IN THE OPPOSITE SIDE THEREOF AND A A HORIZONTAL STRAIGHT GROOVE IN ONE END THEREOF AND A HORIZONTAL STRAIGHT FLANGE IN THE OTHER END THEROF, THE ADJACENT BLOCKS IN A COURSE HAVING THE STRAIGHT FLANGE