_Quicksilver_. 16. The said day, May first, one libra of quicksilver was incorporated with one quintal of ore obtained from the said old mines--from the one called Conog. On the eighth of the said month it was washed, and another small grain of gold obtained, of the same size as the preceding. Four onzas of quicksilver were lost in the said assay. _Quicksilver_. 17. May two, one-half libra of quicksilver was incorporated with two arrobas of ore obtained from the vein and works of the streamlet at the new mine mentioned above as being near our fort of Santiago. Compounding that assay and calcination with magistral, nothing was obtained. Three onzas of quicksilver were lost. _Quicksilver_. 18. The said day, May two, another one-half libra of quicksilver was incorporated with another half libra, I mean one-half quintal, of ore obtained from the preceding opening and vein. It was washed on the sixth of the said month, as also was the preceding assay. Only a small grain of gold weighing one-fourth real was obtained from that [mass] which was only compounded with quicksilver. Two and one-half onzas of quicksilver were lost. _Quicksilver_. 19. On the fifth of the same month of May three libras of quicksilver were incorporated with three quintals of ore from the first hole and mouth opened near our fort, as above stated. On the twelfth of the said month it was washed, and a grain of gold weighing scarcely one real obtained. Two onzas of quicksilver were lost. _Quicksilver_. 20. Saturday, May eleven, one-half libra of quicksilver was incorporated with two arrobas of ore obtained from an enclosure found at one-half legua's distance from our fort and the new mine, on the edge of a river. It was washed on the sixteenth of the said month, but nothing was found in it. One and one-half onzas of quicksilver were lost. _Quicksilver_. 21. On the fourteenth of the said month one libra of quicksilver was incorporated with one quintal of ore obtained from a passage which was discovered to have been worked by the Ygolotes in the same vein and new mine, in its western part of which mention has been made. The said vein extends to the southwest. The mixture was washed on the eighteenth of the said month, and a small grain of gold, weighing one-half real, was obtained. One-half onza of quicksilver was lost. _Quicksilver_. 22. On Thursday, May nine, three libras of quicksilver were incorporated with three quintals of ore obtained from the first hole and vein of the new mine, of which mention has been made. May nineteen it was washed, and a small grain of gold, of one-third real weight, obtained. Twelve onzas of quicksilver were lost.