56 
S 
S P 
S P 
S P 
S P 
s 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
S P 
s 
s 
s 
1250 [No information] 
1251 [Ducts 1 ] of latex from Euphorbia splendens; diluted 
[unintelligible] acid and [unintelligible] varnish 
1252 Fiber of locust; with ashes of same 
1253 Fiber of chestnut; with ashes of same 
1254 Crystals of testa of seed of elm; Phi. Sod. 20.5.42 
1255 Hickory; [no material left on slide] 
1256 Crystals from Quillaia 
1257 From Equisetum by strong nitric acid; does not polarize 
1258 Silica from leaf of Olyra paniculata; does not polarize 
1259 Silica from leaf of Arundo donax; does not polarize 
1260 Silica from cuticle of Arundo donax ; does not polarize 
1261 Silica from cuticle of Ratonia; does not polarize 
1262 Equisetum with NO , then ignited; does not polarize 
1263 Siliceous cuticle of Equisetum 
1264 Silica from the glumes and awns of barley; does not 
polarize 
1265 Silica from glumes and awns of barley 
1266 Prickles from an awn of Aegilops 
1267 Perianth on Nitella 
1268 Silica from cuticle of Equisetum; English specimens 
1269 Siliceous cuticle of Equisetum 
1270 South Sea island fabric 
1271 Sections of [Cypeliger ?] knee; longitudinal and 
transverse - 2 coverglasses 
1272 [No information] 
1273 Smut [?]; no. 12; parallel to fiber 
1274 No. 3; transverse [unintelligible] 
1275 [No information] 
