31. The dates and achievements of the most of the early Abkhazian rulers remain conjectural . 32. Some basic conjectural history on human civilization was therefore discussed in the 17th century. 33. In 2012 Wooley improved the range of s for which the conjectural form holds. 34. This is entirely conjectural , of course. 35. Depictions are necessarily conjectural , because petrification and other fossilization mechanisms do not preserve colors. 36. This is a tricky, conjectural one. 37. Prions, however, are still conjectural entities and have not been isolated in pure form. 38. But the leap from small brain plus large spinal cavity to second brain was only conjectural . 39. But, this theory has not yet been fully fleshed out and is still considered conjectural . 40. Emendations not supported by any known source are sometimes called " conjectural " emendations.
