The following is from "The Principles of Communism" which was written in 1847. Well before the existence of the Soviet Union.It might probably help if Химик provided brief definitions of both terms to make a sort of terminological corridor.
Note that "present day society" refers to the capitalist society of 1847.
Bourgeois Socialism:The first category consists of adherents of a feudal and patriarchal society which has already been destroyed, and is still daily being destroyed, by big industry and world trade and their creation, bourgeois society. This category concludes, from the evils of existing society, that feudal and patriarchal society must be restored because it was free of such evils. In one way or another, all their proposals are directed to this end.
This category of reactionary socialists, for all their seeming partisanship and their scalding tears for the misery of the proletariat, is nevertheless energetically opposed by the communists for the following reasons:
(i) It strives for something which is entirely impossible.
(ii) It seeks to establish the rule of the aristocracy, the guildmasters, the small producers, and their retinue of absolute or feudal monarchs, officials, soldiers, and priests – a society which was, to be sure, free of the evils of present-day society but which brought it at least as many evils without even offering to the oppressed workers the prospect of liberation through a communist revolution.
(iii) As soon as the proletariat becomes revolutionary and communist, these reactionary socialists show their true colors by immediately making common cause with the bourgeoisie against the proletarians.
Democratic Socialism:The second category consists of adherents of present-day society who have been frightened for its future by the evils to which it necessarily gives rise. What they want, therefore, is to maintain this society while getting rid of the evils which are an inherent part of it.
To this end, some propose mere welfare measures – while others come forward with grandiose systems of reform which, under the pretense of re-organizing society, are in fact intended to preserve the foundations, and hence the life, of existing society.
Communists must unremittingly struggle against these bourgeois socialists because they work for the enemies of communists and protect the society which communists aim to overthrow.
Measures that communists advocate (Question 18 ):Finally, the third category consists of democratic socialists who favor some of the same measures the communists advocate, as described in Question 18 [see below], not as part of the transition to communism, however, but as measures which they believe will be sufficient to abolish the misery and evils of present-day society.
These democratic socialists are either proletarians who are not yet sufficiently clear about the conditions of the liberation of their class, or they are representatives of the petty bourgeoisie, a class which, prior to the achievement of democracy and the socialist measures to which it gives rise, has many interests in common with the proletariat.
It follows that, in moments of action, the communists will have to come to an understanding with these democratic socialists, and in general to follow as far as possible a common policy with them – provided that these socialists do not enter into the service of the ruling bourgeoisie and attack the communists.
It is clear that this form of co-operation in action does not exclude the discussion of differences.
It should be obvious to anyone that the western world is very socialist. Even the United States, the most anti-socialism/communism country I know of, has taken a lot of communist measures.(i) Limitation of private property through progressive taxation, heavy inheritance taxes, abolition of inheritance through collateral lines (brothers, nephews, etc.) forced loans, etc.
(ii) Gradual expropriation of landowners, industrialists, railroad magnates and shipowners, partly through competition by state industry, partly directly through compensation in the form of bonds.
(iii) Confiscation of the possessions of all emigrants and rebels against the majority of the people.
(iv) Organization of labor or employment of proletarians on publicly owned land, in factories and workshops, with competition among the workers being abolished and with the factory owners, in so far as they still exist, being obliged to pay the same high wages as those paid by the state.
(v) An equal obligation on all members of society to work until such time as private property has been completely abolished. Formation of industrial armies, especially for agriculture.
(vi) Centralization of money and credit in the hands of the state through a national bank with state capital, and the suppression of all private banks and bankers.
(vii) Increase in the number of national factories, workshops, railroads, ships; bringing new lands into cultivation and improvement of land already under cultivation – all in proportion to the growth of the capital and labor force at the disposal of the nation.
(viii) Education of all children, from the moment they can leave their mother’s care, in national establishments at national cost. Education and production together.
(ix) Construction, on public lands, of great palaces as communal dwellings for associated groups of citizens engaged in both industry and agriculture and combining in their way of life the advantages of urban and rural conditions while avoiding the one-sidedness and drawbacks of each.
(x) Destruction of all unhealthy and jerry-built dwellings in urban districts.
(xi) Equal inheritance rights for children born in and out of wedlock.
(xii) Concentration of all means of transportation in the hands of the nation.