1006 Mr. Wilson’s Experiments 
lative to the making of the experiments ; it being fo diffi- 
cult to preferve the intended diftances between the refpec- 
tive parts of an apparatus not perfectly executed (as is fre- 
quently the cafe with all new inftruments) that we could 
not fucceed in adjufting the diflances of the electrome- 
ter, fo as to be exactly in an arithmetical progreffion. 
June 23, 1778. 5®. Wilson* 
TABLE 
