been a lien (sec. 4), secondly the sixty days limitation (sec. 5). In
my opinion they also introduce the third limitation created by or
referred to in secs. 7, 8, 9 and 11, namely, the limitation in amount
of the liability of a person who is treated as a contractee to the amount
of moneys which are due or to accrue due from the contractee to the
contractor - that is, in the case of sec. 18, to the person there called
the sub-contractor. It is difficult to suggest any reason, based upon
the words of the first part of sec. 18, why the two former limitations
'should be included and the third excluded. Indeed, the words
'must, I think, be interpreted as including all the limitations, or none.
If they include none, they become meaningless. Thus, to sum up,
the first part of sec. 18 prevents a contractor arguing that he cannot
be treated as a contractee because he is a contractor, and it also
-excludes any contention that a sub-contractor is not a contractor
within the meaning of the Act. Further, the words " to the extent
provided for by this Act" introduce all the limitations to which I
have already referred.
The second part of sec. 18 provides that the workman or tradesman
"may proceed against the contractor, as in this Act provided, as if he
had been directly employed by or had directly contracted with him."
This part of the section is complementary to the first part. The first
part declares the responsibility of the contractor where there are a
head contractor, a contractor, a sub-contractor and a workman.
The responsibility of the contractor is limited in extent by the Act.
But this provision only takes the workman as far as the contractor
- not as far as the head contractor. It would be possible to argue
that, when he had obtained a certificate against the contractor, he
had exhausted the remedies of the Act, because there could not be
-acertificate upon a certificate. The Act provides only for a certificate
upon and after a judgment (sec. 3). How then could provision be
made to enable a workman to reach a head contractor if both a
'contractor and a sub-contractor defaulted ? If the scheme of the
Act were to be preserved, the only answer could be that provision
must be made to enable the workman to get, not merely a certificate
against the contractor, but some judgment against the contractor
upon which a certificate against the head contractor can be based.
'This is what sec. 18 accomplishes. It first makes it clear that,