start month            end month                            cover                   spine                            indicia                         masthead  number of issues
0         oct - 50             aug - 58           galaxy science fiction  galaxy science fiction             galaxy science fiction           galaxy science fiction                94
1         sep - 58             oct - 62                  galaxy magazine         galaxy magazine                    galaxy magazine                  galaxy magazine                27
2         dec - 62             dec - 65                           galaxy                  galaxy                    galaxy magazine                  galaxy magazine                19
3         feb - 66             sep - 68                           galaxy                  galaxy                    galaxy magazine                  galaxy magazine                18
4         oct - 68             oct - 69  galaxy science fiction magazine                  galaxy                    galaxy magazine                  galaxy magazine                12
5         nov - 69             jan - 72  galaxy science fiction magazine                  galaxy                    galaxy magazine  galaxy science fiction magazine                20
6         mar - 72             mar - 72                  galaxy magazine                  galaxy                    galaxy magazine  galaxy science fiction magazine                 1
7   may / jun - 72             jan - 73                  galaxy magazine  galaxy science fiction                    galaxy magazine           galaxy science fiction                 5
8   mar / apr - 73       mar / apr - 73                           galaxy                  galaxy                    galaxy magazine  galaxy science fiction magazine                 1
9   may / jun - 73             nov - 73                           galaxy                  galaxy                             galaxy           galaxy science fiction                 5
10        dec - 73             dec - 73           galaxy science fiction                  galaxy                             galaxy  galaxy science fiction magazine                 1
11        jan - 74             jan - 75                           galaxy                  galaxy                             galaxy  galaxy science fiction magazine                13
12        feb - 75             jan - 76                           galaxy                  galaxy  galaxy incorporating worlds of if  galaxy science fiction magazine                 9
13        feb - 76             oct - 77           galaxy science fiction  galaxy science fiction  galaxy incorporating worlds of if           galaxy science fiction                16
14        nov - 77  dec - 77 / jan - 78                           galaxy                  galaxy  galaxy incorporating worlds of if                           galaxy                 2
15        feb - 78             oct - 79           galaxy science fiction  galaxy science fiction  galaxy incorporating worlds of if           galaxy science fiction                10
16     summer - 80          summer - 80                           galaxy                  galaxy                             galaxy                           galaxy                 1

Table as JSON:
{"start month":{"0":"oct - 50","1":"sep - 58","2":"dec - 62","3":"feb - 66","4":"oct - 68","5":"nov - 69","6":"mar - 72","7":"may \/ jun - 72","8":"mar \/ apr - 73","9":"may \/ jun - 73","10":"dec - 73","11":"jan - 74","12":"feb - 75","13":"feb - 76","14":"nov - 77","15":"feb - 78","16":"summer - 80"},"end month":{"0":"aug - 58","1":"oct - 62","2":"dec - 65","3":"sep - 68","4":"oct - 69","5":"jan - 72","6":"mar - 72","7":"jan - 73","8":"mar \/ apr - 73","9":"nov - 73","10":"dec - 73","11":"jan - 75","12":"jan - 76","13":"oct - 77","14":"dec - 77 \/ jan - 78","15":"oct - 79","16":"summer - 80"},"cover":{"0":"galaxy science fiction","1":"galaxy magazine","2":"galaxy","3":"galaxy","4":"galaxy science fiction magazine","5":"galaxy science fiction magazine","6":"galaxy magazine","7":"galaxy magazine","8":"galaxy","9":"galaxy","10":"galaxy science fiction","11":"galaxy","12":"galaxy","13":"galaxy science fiction","14":"galaxy","15":"galaxy science fiction","16":"galaxy"},"spine":{"0":"galaxy science fiction","1":"galaxy magazine","2":"galaxy","3":"galaxy","4":"galaxy","5":"galaxy","6":"galaxy","7":"galaxy science fiction","8":"galaxy","9":"galaxy","10":"galaxy","11":"galaxy","12":"galaxy","13":"galaxy science fiction","14":"galaxy","15":"galaxy science fiction","16":"galaxy"},"indicia":{"0":"galaxy science fiction","1":"galaxy magazine","2":"galaxy magazine","3":"galaxy magazine","4":"galaxy magazine","5":"galaxy magazine","6":"galaxy magazine","7":"galaxy magazine","8":"galaxy magazine","9":"galaxy","10":"galaxy","11":"galaxy","12":"galaxy incorporating worlds of if","13":"galaxy incorporating worlds of if","14":"galaxy incorporating worlds of if","15":"galaxy incorporating worlds of if","16":"galaxy"},"masthead":{"0":"galaxy science fiction","1":"galaxy magazine","2":"galaxy magazine","3":"galaxy magazine","4":"galaxy magazine","5":"galaxy science fiction magazine","6":"galaxy science fiction magazine","7":"galaxy science fiction","8":"galaxy science fiction magazine","9":"galaxy science fiction","10":"galaxy science fiction magazine","11":"galaxy science fiction magazine","12":"galaxy science fiction magazine","13":"galaxy science fiction","14":"galaxy","15":"galaxy science fiction","16":"galaxy"},"number of issues":{"0":94,"1":27,"2":19,"3":18,"4":12,"5":20,"6":1,"7":5,"8":1,"9":5,"10":1,"11":13,"12":9,"13":16,"14":2,"15":10,"16":1}}