<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                       1,556,646
<SECURITIES>                                         0
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                      13,169,118
<DEPRECIATION>                               5,764,229
<TOTAL-ASSETS>                               9,006,896
<CURRENT-LIABILITIES>                          359,486
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   8,647,410
<TOTAL-LIABILITY-AND-EQUITY>                 9,006,896
<SALES>                                        813,940
<TOTAL-REVENUES>                               899,353
<CGS>                                                0
<TOTAL-COSTS>                                  486,716
<OTHER-EXPENSES>                               326,028
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 86,609
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    86,609
<EPS-PRIMARY>                                     0.45
<EPS-DILUTED>                                     0.45