( 88 ) 
to which 
El SS MBA MBB et! | an De Sil vers | 
ei : | 
ty bi ba bs by bs deg —ay -ag -ag —a4y —az ag a! Suiits 
belongs as supplementary “assemblant’’. 
If we omit one of the columns from the “assemblaut” (6) the 
determinants in the remaining columns (see Chapter I of the above- 
named paper) are divisible by the supplementary determinant of the 
assemblant. 
From this “assemblant” the coefficients of the resultant follow 
immediately. 
Thus we find for the resultant between y and <: 
P12,13,14,15 ¥* + pi113nars Y= + pii,12,14,15 y22? + piii2,13,15 y 22 + 
+ p1,19,13,14 <* = op oy HOR 
for the resultant between « and z: 
P3,6,10,15 2" + 71,6,10,15 e°> + P1,3,10,15 72" + P1,36,15 et + 
+ oi36102*=0 . . (9), 
for the resultant between x and y: 
pat t+ piazn y+ prez dy H pros ey? + piye47 y*=0.(10), 
where the coefficients represent determinants contained in “assem- 
blant” (6) after one of the columns having been omitted and where 
the indices indicate which rows must be left out of the “assemblant”’ 
to obtain the determinant represented by the symbol. All the coef- 
ficients of the equations (8), (9) and (10) are now still divisible by 
the same linear factor, namely by /, if we leave the sixth column 
out of the ‘“assemblant”, in general by the supplementary determinant 
of the “assemblant” (7). 
Chemistry. — Prof. V. A. Justus presents on behalf of 
Dr. A. Surrs of Amsterdam a paper on „Zuvestigations with 
the Micromanometer.” 
After I had published in 1896 the first results obtained with the 
micromanometer !), I continued my investigations to inquire whether 
the course observed for NaCl, KOH and cane-sugar would also 
appear in other compounds. 
1) Dissertation „Untersuchungen mit dem Mikromanometer” 1896. Verslag Koninkl. 
Akad. v. Wetensch. te Amsterdam, Wis- en Natuurk. Afd. pag. 292, 1897. Archives 
Neerl. Série IT, Tome I, p. 89, 1837. 
ee 
