You may want to identify certain types of equipment by vendor name and brand or category (., ultracentrifuge vs. prep centrifuge), particularly if they are not commonly found in most labs. It is appropriate to report, parenthetically, the source (vendor) and catalog number for reagents used, ., " ....poly-L-lysine (Sigma #1309) ." When using a method described in another published source, you can save time and words by providing the relevant citation to the source. Always make sure to describe any modifications you have made of a standard or published method.
Construction and maintenance of outhouses in the US is subject to state and local governmental restriction, regulation and prohibition.  It is potentially both a public health issue, which has been addressed both by law and by education of the public as to good methods and practices ( . , separation from drinking water sources). This also becomes a more prevalent issue as urban and suburban development encroaches on rural areas,  and is an external manifestation of a deeper cultural conflict.  See also urban sprawl , urban planning , regional planning , suburbanization , urbanization and counterurbanization .