...I wanted very much to see the mode of charging the mortars andletting off the shells, and for that purpose I went to an Englishbattery that was but a very few yards from the walls of the citadel... 
Olaudah Equiano 「The Interesting Narrative of the Life of Olaudah Equiano, Or Gustavus Vassa, The African」
...When required for use, it is pounded in wooden mortars, and afterwards ground between two stones...
W.H.G. Kingston 「Great African Travellers」
...After being pounded in their long mortars, it is ground fine, by hand, between two stones like those used by painters, and is mixed with palm-wine...
Horatio Bridge 「Journal of an African Cruiser」
...On the floor near the walls sat four large mortars with heavy pestles in them...
Edward S. Curtis 「The North American Indian」
...Lower down in the foothills, wherethere are no suitable large rocks for these permanent mortars,the Indians used single portable stone mortars for this purpose...
Galen Clark 「Indians of the Yosemite Valley and Vicinity」
...One is merely a round opening 5 feet in width and height, soonnarrowing to a crevice; it would not be mentioned except that in itwas a sandstone slab such as mortars are made of...
Gerard Fowke 「Archeological Investigations」
...On top of the hill isthe site of an Indian village where some mortars, grinding stones, andnumerous flints have been found...
Gerard Fowke 「Archeological Investigations」
...Two fragments of stone mortars...
James Stevenson 「Illustrated Catalogue of the Collections Obtained」
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