.i. As amlaidh ata an talam a cert medhon na firmaminti a fidhair dul sis na corp trom mar sheantrom .i. ponc medhonach a raed crinn. Et mar adubramar as e inadh nadurtha an usci beit a timceall na talman & da fadadh slighe gan oilbeim on talmain, o ta fein na corp trom siltec siblach ni anfadh co roitfedh seantrom na talman & d'anfad annsin oir as e sin, mar adubrumar, inadh deiginach sibail na corp trom. Et atait ranna an usci ac dinge a ceili da dul tar a ceili d'iarraidh seanntroim an domain mar inadh nadurtha doib fein da ligeadh daingne na talman doib . As egin, o ta an talam comcruinn daingean a gabail risin uisci gan a dul cum an t-seantruim, co fuil an t-uisci comcruinn a dimceall na talman & as mar sin ata fidair cruinn ag an da duil ele gluaises suas on t-seantrom co ruic an cercaill timcill.
Oir ata an tene ar son a h-edruime ac tarraing suas no co n-gabann cercall daingean dotruailligte an re ria & o nach fadhann slidhi tairis do coimed & da comhdaigh hi fein fo ascaill cruinn na cercaille sin & as uime sin as egin di fein beith cruinn mar ata cercall