this invention relates to the construction of block walls , and more particularly to the provision of a wall construction utilizing connector guides of a unique construction adapted to permit easy and rapid construction of a block wall , complete with uniform mortar joints . u . s . pat . no . 4 , 334 , 397 , granted june 15 , 1982 , to george r . hitz , discloses the use of spacer elements between the blocks or brick of a masonry wall , for dictating and dimensions of the mortar spaces between the blocks . some additional patents relating to spacer aids are listed and are , to a limited extent , discussed in this patent . u . s . pat . no . 2 , 392 , 551 , granted jan . 8 , 1946 , to james roe ; u . s . pat . no . 3 , 936 , 987 , granted feb . 10 , 1976 , to edward l . calvin ; and swiss pat . no . 431 , 882 , published in 1967 , inventor rene metzler , each discloses a block wall construction involving interlocks between the blocks and mortar joints . the present invention relates to the provision of a wall construction utilizing mortar space defining elements which engage the blocks and provide a substantially true alignment of the blocks , in addition to spacing the blocks apart both vertically and horizontally by amounts to provide substantially uniform mortar joint space between the blocks . basically , the wall construction of the present invention comprises a plurality of blocks , each of which has an exterior face , an interior face , two ends , and two vertical notches formed in each end of the block , one adjacent the exterior face and the other adjacent the interior face . a plurality of connector guides are provided , one at each end of each block . each connector guide comprises a pair of vertically extending guide members , one for each notch . each guide member has a portion which fits into its notch and each also includes a lower end of a platform leg which projects laterally below a portion of the block adjacent the notch . the two guide members are connected together by tie means . the connector guides position the blocks to provide a substantially true alignment of the blocks . they also space the blocks apart both vertically and horizontally by amounts to provide substantially uniform mortar joint spaces between the blocks . in accordance with another aspect of the invention , the vertical notches adjacent the interior face of the blocks are at the interior corners of the blocks . the guide members in such notches present interior wall faces which are substantially flush with the interior wall faces of the blocks . this provides way of conveniently connecting surface material to the wall . the surface materials can be nailed or otherwise secured to the guide members in the interior corner notches . in accordance with another aspect of the invention , the vertical notches adjacent the exterior faces of the blocks are offset inwardly from the exterior faces of the blocks , so that mortar joint spaces exist outwardly of the guide members which are within such notches . in preferred form , the tie means for each connector guide comprises an upper connector member innerconnected between the upper ends of the guide members and a lower connector member interconnected between the lower ends of the guide members . in preferred form , the tie means may be in the form of metal rods with end portions which extend into the ends of the guide members . other more detailed aspects of the invention will be hereinafter described in connection with the illustrated embodiment of the invention . like parts are designated by like reference numerals throughout the several figures of the drawing , and : fig1 is an elevational view of a fragmentary portion of a block wall , looking towards the interior side of such wall , and showing a fragmentary portion of an interior wall panel which is nailed to connector guides which are a part of the wall construction ; fig2 is a view like fig1 but looking towards the exterior side of the wall ; fig3 is a fragmentary sectional view , taken substantially along line 3 -- 3 of fig1 ; fig4 is an exploded isometric view showing a block spaced in position from the connector guide structure which is provided at the opposite ends of the block ; fig5 is an isometric view of the components of fig4 shown assembled together ; fig6 is a top plan view of an upper course of a block wall in construction , with the mortar omitted ; fig7 is an elevational view of the upper and lower portions of a connector guide , showing a possible connection of the tie means to the guide members ; and fig8 is a view like fig4 showing a modified construction of the guide members ; and fig9 is a fragmentary top plan view showing a guide member of fig8 within a notch in a block . fig1 is a side view of a partial portion of a block wall 10 . the block wall 10 comprises individual notched blocks 12 . the notched blocks 12 are stacked to form the wall 10 having mortar joint spaces 14 . as set forth in fig1 the notched blocks 12 are set in position by connector guides 16 . the connector guides 16 are designed to position themselves on the sides of the notched blocks 12 further , the connector guides 16 form a platform 18 upon which the combination of connector guides 16 and notched blocks 12 rest . since the connector guides 16 are essentially uniform in size and configuration , a uniform positioning of the notched blocks 12 in relation to each other is established . thus , as set forth on fig1 the mortar joints 14 are uniform . as shown in fig3 - 6 and 8 , each notched block 12 includes four notches or recesses . in the interior face , are interior notches 20 and 22 . the interior notches 20 , 22 run from top to bottom of the notched block . as illustrated in fig3 interior notch 20 takes off the interior right hand corner of the notched block 12 . interior notch 22 takes off the interior left hand corner of the notched block 12 . the exterior notches 24 and 26 are positioned inward from the exterior face 28 of the notched block 12 . the notches 24 and 26 for the exterior face run the length from top to bottom down the opposing sides of the notched block 12 . the positioning of the exterior notches 24 and 26 inward from the exterior face 28 allows for mortar recesses 14 , thereby allowing the user to place mortar in all of the joints . the mortar is allowed to thus seep into all recesses 14 until it comes into abutment with a connector guide 16 . as set forth previously , on the opposing interior face 30 complete corners of the notched block are taken away , thereby allowing the outer face 32 of the connector guides 16 to lie flush with the interior face 30 of the notched block 12 . the advantage of allowing for the flush placement of the outer face 32 of the connector guide 16 with the interior face 30 of the notched blocks , is to allow for a uniform nailing surface in the interior wall formed by the notched blocks 12 . for instance , a sheet of sheetrock 31 may be nailed flush with the cement blocks 12 and connector guides 16 . in fig4 a detailed view of the connector guide 16 is illustrated . as set forth in fig4 an interior wall guide member 34 includes an interior wall guide platform leg 36 , which extends horizontally from the interior wall guide member 34 . the platform leg 36 runs the width of the interior wall guide member . opposing the interior wall guide member 34 is exterior wall guide member 38 . the exterior wall guide member 38 also includes exterior wall guide platform leg 40 . the exterior wall guide platform leg 40 also extends horizontally from the exterior wall guide member 38 . the interior wall guide platform leg 36 and the exterior wall guide platform leg 40 extend toward one another . thus , the interior wall guide platform leg 36 extends toward the exterior wall and the exterior wall guide platform leg 40 extends toward the interior wall . in the preferred embodiment , the interior wall guide 34 and the exterior wall guide member 38 are held in position by wires 42 and 44 . the wires can be replaced , however , with other conventional means of holding the exterior and interior wall guides in position . in fig5 a notched block 12 is shown resting on the interior wall guide 34 and exterior wall guide 38 . as set forth in fig5 the notched block bottom surface 46 merely rests on the interior wall guide platform leg 36 and the exterior wall guide platform leg 40 . further , the notched block 12 is positioned on either side of the wires 42 and 44 . thus , when the next notched block 12 rests on the same interior and exterior platform legs 36 and 40 , the notched block will be positioned on the other side of the wire 42 . ( see fig6 .) thus , the first step is to place connector guides 16 on the opposing sides of the notched block 12 . after this is completed , and mortar is placed in spaces 14 , according to standard practice . the user merely places the notched block with connector guides on the notched blocks 12 which have already been formed into the wall 10 . on the next step , the user merely places a connector guide 16 on one side of the notched block 12 and does not place a connector guide 16 on the opposing side , allowing for the user to position this notched block 12 on the face of the connector guide 16 from the first notched block placed down . since the notched blocks rest on the platforms 18 ( i . e . 36 , 40 ) the user constructs a uniform wall . on the exterior face 28 , the mortar joints are uniform both vertically and laterally and mortar can be placed according to standard practice . finally , since the interior wall guide member 34 and the exterior wall guide member 38 are held together by wires 42 , 44 , insulation can be blown down the slot between the interior wall guide and the exterior wall guide of the connector guide 16 . fig1 and 3 - 6 show the sides of members 34 , 38 having a v - shape , conforming to the v - shape of the notches 20 , 22 , 24 , 26 . fig8 and 9 show a modification . the sides of the members 34 &# 39 ; and 38 &# 39 ; are flat . this provides a space for mortar between the members 34 &# 39 ;, 38 &# 39 ; and the bases of the notches 20 , 22 , 24 , 26 . fig7 shows that the ends of the wires 42 , 44 may be bent and embedded in the ends of the guide members 34 , 34 &# 39 ;, 38 , 38 &# 39 ;. although particular preferred embodiments of the invention have been disclosed above for illustrative purposes , it is to be understood that variations or modifications thereof which lie within the scope of the appended claims are contemplated .