J. J. van Laar (1860-)
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. . For biograpl~iml note contributed by Dr. H. S. van Kloostrr, of ltenrwlaer Polytechnic Inrtitutr, sec page 439. Dr. van Kloo,ter nlso lent the hrrc re- produced.
Transcript of J. J. van Laar (1860-)
. . For biograpl~iml note contributed by Dr. H. S. van
Kloostrr, of ltenrwlaer Polytechnic Inrtitutr, sec page 439. Dr. van Kloo,ter nlso lent the hrrc re- produced.
