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- 13:20, 16 January 2014 diff hist -57 Iceland spar →Description
- 13:19, 16 January 2014 diff hist -555 Ice paper →Description
- 13:15, 16 January 2014 diff hist -131 Ice →Description
- 13:14, 16 January 2014 diff hist -157 Hypodermis →Description
- 13:13, 16 January 2014 diff hist -208 Hypochlorous acid →Description
- 13:12, 16 January 2014 diff hist -134 Hyplar →Description
- 13:12, 16 January 2014 diff hist -293 Hygrothermograph →Description
- 13:11, 16 January 2014 diff hist -309 Hygroscopic →Description current
- 13:10, 16 January 2014 diff hist -197 Hygrometer →Description
- 13:09, 16 January 2014 diff hist -66 Hydrozincite →Description
- 13:08, 16 January 2014 diff hist -334 Hydroxypropyl cellulose →Description
- 13:07, 16 January 2014 diff hist -177 Hydroxyproline →Description
- 13:06, 16 January 2014 diff hist -66 Hydroxylamine sulfate →Description
- 13:06, 16 January 2014 diff hist -127 Hydroxylamine hydrochloride →Description
- 13:05, 16 January 2014 diff hist -546 Hydroxyethyl cellulose →Description
- 13:03, 16 January 2014 diff hist -155 Hydroxyacetic acid →Description
- 13:02, 16 January 2014 diff hist -187 Hydroquinone →Description
- 13:01, 16 January 2014 diff hist -61 Hydroprene →Description
- 13:01, 16 January 2014 diff hist -68 Hydrometer →Description
- 13:01, 16 January 2014 diff hist -222 Hydromel →Description
- 13:00, 16 January 2014 diff hist -424 Hydrolysis →Description
- 12:59, 16 January 2014 diff hist +2 Hydrogen sulfide scavenger →Additional Information
- 12:59, 16 January 2014 diff hist -440 Hydrogen sulfide scavenger →Description
- 12:57, 16 January 2014 diff hist -708 Hydrogen peroxide →Description
- 12:56, 16 January 2014 diff hist -175 Hydrogen fluoride →Description
- 12:56, 16 January 2014 diff hist +2 Hydrogen cyanide →Additional Information
- 12:55, 16 January 2014 diff hist -106 Hydrogen →Description
- 12:54, 16 January 2014 diff hist -456 Hydrofluoric acid →Description
- 12:53, 16 January 2014 diff hist -417 Hydrochloric acid →Description
- 12:52, 16 January 2014 diff hist -125 Hydrocal White gypsum cement →Description
- 12:51, 16 January 2014 diff hist -68 Hydraulic mortar →Description
- 12:51, 16 January 2014 diff hist -592 Hydraulic lime →Description
- 12:50, 16 January 2014 diff hist +2 Hydraulic cement →Additional Information
- 12:50, 16 January 2014 diff hist -473 Hydraulic cement →Description
- 12:49, 16 January 2014 diff hist -242 Hydrated silica →Description
- 12:48, 16 January 2014 diff hist -114 Hydantoin →Description
- 12:47, 16 January 2014 diff hist -54 Hyalite →Description
- 12:47, 16 January 2014 diff hist -173 Hyacinth →Description
- 12:47, 16 January 2014 diff hist +2 Hxtal NYL-1 →Additional Information
- 12:46, 16 January 2014 diff hist +2 Huntite →Additional Information
- 12:46, 16 January 2014 diff hist -118 Hungary blue →Description
- 12:46, 16 January 2014 diff hist -49 Hummingbird →Description
- 12:46, 16 January 2014 diff hist -59 Hummelstown brownstone →Description
- 12:45, 16 January 2014 diff hist -50 Humidity indicator card →Description
- 12:45, 16 January 2014 diff hist -208 Humidity →Description
- 12:44, 16 January 2014 diff hist -58 Humectant →Description
- 12:44, 16 January 2014 diff hist -57 Human hair →Description
- 12:43, 16 January 2014 diff hist -217 Hull fiber →Description
- 12:43, 16 January 2014 diff hist -53 Hue →Description
- 12:43, 16 January 2014 diff hist -59 Hudson River bluestone →Description